2.555.3

📦 Jenkins Core updates

• Update to Jenkins 2.555.3 (changelog)

📦 Dependency updates

• Bump JDK21 version to 21.0.11+10 (#2338) @github-actions[bot]
• Bump Debian version to 20260518 (#2347) @github-actions[bot]
• Bump RHEL version to 9.8-1780376557 (#2359) @github-actions[bot]
• Bump plugin-installation-manager-tool version to 2.15.0 (#2332) @github-actions[bot]

🐛 Bug fixes

• fix: do not skip plugin upgrades on maintenance-branch version bumps (#2329) @lauraseidler
• fix(alpine,debian) Install git-lfs config at system scope (#2357) @Shreyashxredhat

Full Changelog: 2.555.2...2.555.3