Fixes #85

We're no longer compatible with pre 1.16  since #79.

I'm opting for removing the version rather than updating it to 1.18
since we already have go.mod for this.

Adding a pointer to the Go release policy, but I also considered
dropping the mentions altogether. Copied the copy from `zap`.

update version 0.10.0 link in CHANGELOG.md

Fixes #92.

Avoid tools dependencies in goleak's go.mod.

golint is deprecated, we can separately migrate to another tool, but the
tools change avoids any CI-time dependency from leaking into our go.mod.

Revive is a drop-in replacement for golint that's faster.

Setting up a basic configuration that we can be tweaked going forward.

Follow-up to #92.

Revive is a drop-in replacement for golint that's faster.

Setting up a basic configuration that we can be tweaked going forward.

As part of this change, also upgrade the actions to the latest major
versions.

This also fixes a typo in the tools/go.mod.

This release is a patch release that removes golang/x/lint dependency.

Ref #99.