Description

This PR introduces the logic to handle local alias conflicts on Perf
Secondaries. Rather than follow the merge and persist behavior we use
for non-local aliases, we instead delete the duplicate from its parent
entity and remove the parent entity from the local alias packer.

This decision is a compromise, which will prevent complex distributed
state problems which would otherwise result in non-deterministic
behavior when there are local alias conflicts.

Enterprise PR: https://github.com/hashicorp/vault-enterprise/pull/7770
Resolves: VAULT-33671

TODO only if you're a HashiCorp employee

• Backport Labels: If this fix needs to be backported, use the appropriate backport/ label that matches the desired release branch. Note that in the CE repo, the latest release branch will look like backport/x.x.x, but older release branches will be backport/ent/x.x.x+ent.
  • LTS: If this fixes a critical security vulnerability or severity 1 bug, it will also need to be backported to the current LTS versions of Vault. To ensure this, use all available enterprise labels.
• ENT Breakage: If this PR either 1) removes a public function OR 2) changes the signature
  of a public function, even if that change is in a CE file, double check that
  applying the patch for this PR to the ENT repo and running tests doesn't
  break any tests. Sometimes ENT only tests rely on public functions in CE
  files.
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• ENT PR: If this change has an associated ENT PR, please link it in the
  description. Also, make sure the changelog is in this PR, not in your ENT PR.