Release v14.31.0

v14.31.0

• Update dependency gitlab-dangerfiles to '~> 4.6.0'
• Update module golang.org/x/crypto to v0.15.0
• Revert workaround to start gitaly service in test
• Update module gitlab.com/gitlab-org/gitaly/v16 to v16.6.0
• Remove the RPC call for Namespace removal
• Update module gitlab.com/gitlab-org/labkit to v1.21.0
• Revert sending SSH certificate as a separate protocol
• Bump GO_VERSION to 1.21
• Drop support for go 1.19
• Move global tempDir into StartSocketHttpServer()
• New nilaway CI job
• Resolve "Remove NilAway detections for 'client' package"
• call git_autid_event during git pull/clone if in need