This is the functional test counterpart of PR bitcoin#28891 /
commit 007d6f0.

fd0bde2 test: fix `addnode` functional test failure on OpenBSD (Sebastian Falbesoner)

Pull request description:

  This is the functional test counterpart of PR #28891 / commit 007d6f0 (unfortunately, I missed it back then and only ran the unit tests -- sorry for the noise).

  master branch on OpenBSD 7.4:
  ```
  $ ./test/functional/rpc_net.py
  2023-12-08T17:29:05.057000Z TestFramework (INFO): PRNG seed is: 6024296850131317403
  2023-12-08T17:29:05.058000Z TestFramework (INFO): Initializing test directory /tmp/bitcoin_func_test_au3zchif
  2023-12-08T17:29:05.618000Z TestFramework (INFO): Test getconnectioncount
  2023-12-08T17:29:05.618000Z TestFramework (INFO): Test getpeerinfo
  2023-12-08T17:29:06.643000Z TestFramework (INFO): Check getpeerinfo output before a version message was sent
  2023-12-08T17:29:06.709000Z TestFramework (INFO): Test getnettotals
  2023-12-08T17:29:06.773000Z TestFramework (INFO): Test getnetworkinfo
  2023-12-08T17:29:06.978000Z TestFramework (INFO): Test addnode and getaddednodeinfo
  2023-12-08T17:29:06.980000Z TestFramework (ERROR): Assertion failed
  Traceback (most recent call last):
    File "/home/thestack/bitcoin/test/functional/test_framework/test_framework.py", line 131, in main
      self.run_test()
    File "/home/thestack/bitcoin/./test/functional/rpc_net.py", line 65, in run_test
      self.test_addnode_getaddednodeinfo()
    File "/home/thestack/bitcoin/./test/functional/rpc_net.py", line 224, in test_addnode_getaddednodeinfo
      assert_raises_rpc_error(-23, "Node already added", self.nodes[0].addnode, node=ip_port2, command='add')
    File "/home/thestack/bitcoin/test/functional/test_framework/util.py", line 131, in assert_raises_rpc_error
      assert try_rpc(code, message, fun, *args, **kwds), "No exception raised"
  AssertionError: No exception raised
  ```

  On the PR branch, the same call succeeds.

ACKs for top commit:
  kevkevinpal:
    ACK [fd0bde2](fd0bde2)

Tree-SHA512: ae20816fa4025c212e115ebd267b5e5784bfcdf0051219eb686faaade47ec4f91a3947af6d24258b159290000d2dcc3f6e65e788b83b8a9297282945dbdafbfb

007d6f0 test: fix `AddNode` unit test failure on OpenBSD (Sebastian Falbesoner)

Pull request description:

  On OpenBSD 7.4, the following check of the unit test `test_addnode_getaddednodeinfo_and_connection_detection` currently fails:
  ```
  BOOST_CHECK(!connman->AddNode({/*m_added_node=*/"127.1", /*m_use_v2transport=*/true}));
  ```
  The reason for that is that this OS seemingly doesn't support the IPv4 shorthand notation with omitted zero-bytes:

  ```
  $ ping 127.1
  ping: no address associated with name
  ```

  As a simple fix, this PR skips the check for this with a pre-processor #if. On NetBSD and FreeBSD, `127.1` is resolved correctly to localhost and hence the test passes (thanks to vasild for verifying on the latter!).

ACKs for top commit:
  vasild:
    ACK 007d6f0

Tree-SHA512: 8ab8393c490e1ecc140e8ff74f6fa4d26d0dd77e6a77a241cd198314b8c5afee7422f95351ca05f4c1742433dab77016a8ccb8d28062f8edd4b703a918a2bbda

007d6f0 test: fix `AddNode` unit test failure on OpenBSD (Sebastian Falbesoner)

Pull request description:

  On OpenBSD 7.4, the following check of the unit test `test_addnode_getaddednodeinfo_and_connection_detection` currently fails:
  ```
  BOOST_CHECK(!connman->AddNode({/*m_added_node=*/"127.1", /*m_use_v2transport=*/true}));
  ```
  The reason for that is that this OS seemingly doesn't support the IPv4 shorthand notation with omitted zero-bytes:

  ```
  $ ping 127.1
  ping: no address associated with name
  ```

  As a simple fix, this PR skips the check for this with a pre-processor #if. On NetBSD and FreeBSD, `127.1` is resolved correctly to localhost and hence the test passes (thanks to vasild for verifying on the latter!).

ACKs for top commit:
  vasild:
    ACK 007d6f0

Tree-SHA512: 8ab8393c490e1ecc140e8ff74f6fa4d26d0dd77e6a77a241cd198314b8c5afee7422f95351ca05f4c1742433dab77016a8ccb8d28062f8edd4b703a918a2bbda

007d6f0 test: fix `AddNode` unit test failure on OpenBSD (Sebastian Falbesoner)

Pull request description:

  On OpenBSD 7.4, the following check of the unit test `test_addnode_getaddednodeinfo_and_connection_detection` currently fails:
  ```
  BOOST_CHECK(!connman->AddNode({/*m_added_node=*/"127.1", /*m_use_v2transport=*/true}));
  ```
  The reason for that is that this OS seemingly doesn't support the IPv4 shorthand notation with omitted zero-bytes:

  ```
  $ ping 127.1
  ping: no address associated with name
  ```

  As a simple fix, this PR skips the check for this with a pre-processor #if. On NetBSD and FreeBSD, `127.1` is resolved correctly to localhost and hence the test passes (thanks to vasild for verifying on the latter!).

ACKs for top commit:
  vasild:
    ACK 007d6f0

Tree-SHA512: 8ab8393c490e1ecc140e8ff74f6fa4d26d0dd77e6a77a241cd198314b8c5afee7422f95351ca05f4c1742433dab77016a8ccb8d28062f8edd4b703a918a2bbda

007d6f0 test: fix `AddNode` unit test failure on OpenBSD (Sebastian Falbesoner)

Pull request description:

  On OpenBSD 7.4, the following check of the unit test `test_addnode_getaddednodeinfo_and_connection_detection` currently fails:
  ```
  BOOST_CHECK(!connman->AddNode({/*m_added_node=*/"127.1", /*m_use_v2transport=*/true}));
  ```
  The reason for that is that this OS seemingly doesn't support the IPv4 shorthand notation with omitted zero-bytes:

  ```
  $ ping 127.1
  ping: no address associated with name
  ```

  As a simple fix, this PR skips the check for this with a pre-processor #if. On NetBSD and FreeBSD, `127.1` is resolved correctly to localhost and hence the test passes (thanks to vasild for verifying on the latter!).

ACKs for top commit:
  vasild:
    ACK 007d6f0

Tree-SHA512: 8ab8393c490e1ecc140e8ff74f6fa4d26d0dd77e6a77a241cd198314b8c5afee7422f95351ca05f4c1742433dab77016a8ccb8d28062f8edd4b703a918a2bbda

fbc0bce Merge bitcoin#29665: build, depends: Fix `libmultiprocess` cross-compilation (fanquake)
59a2145 Merge bitcoin#29747: depends: fix mingw-w64 Qt DEBUG=1 build (fanquake)
bdb2fa6 Merge bitcoin#29671: index: avoid "failed to commit" errors on initialization (Ava Chow)
65377ea Merge bitcoin#29192: Weaken serfloat tests (fanquake)
4122404 Merge bitcoin#28891: test: fix `AddNode` unit test failure on OpenBSD (fanquake)
812ef53 Merge bitcoin#25677: refactor: make active_chain_tip a reference (MacroFake)
34e12fa Merge bitcoin#24564: doc: Clarify that CheckSequenceLocksAtTip is a validation function (glozow)
d529751 Merge bitcoin#24788: doc: Add gpg key import instructions for Windows (fanquake)
61bae78 Merge bitcoin#24784: refactor: deduplicate integer serialization in RollingBloom benchmark (MarcoFalke)

Pull request description:

  ## Issue being fixed or feature implemented
  Trivial backports

  ## What was done?

  ## How Has This Been Tested?
  built locally

  ## Breaking Changes

  ## Checklist:
    _Go over all the following points, and put an `x` in all the boxes that apply._
  - [ ] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  UdjinM6:
    utACK fbc0bce

Tree-SHA512: 731f70b747712810d4f74fe64a90139b02ddb62e9ac260705fa2588595feb19bd6e5ffed521fd878bacaab0015683e582fed19ed1855c3e955f93cd223862a17