2.473

This is an automatically generated changelog draft for Jenkins weekly releases.
See https://www.jenkins.io/changelog/2.473/ for the official changelog for this release.

🚨 Removed

• JENKINS-73597 - Remove RekeySecretAdminMonitor and related resources (#9594) @jeromepochat

🚀 New features and improvements

• Use standard dropdowns for autocomplete (#9453) @zbynek

🐛 Bug fixes

• Remove trailing backslash from 'Keep this build forever' hover text (#9625) @MarkEWaite

📝 Documentation updates

• Updates to CONTRIBUTING.md (#9615) @basil

All contributors: @MarkEWaite, @basil, @jenkins-release-bot, @jeromepochat, @renovate, @renovate[bot], @timja and @zbynek