2.589

📦 Jenkins Core updates

• Update to Jenkins 2.589 (changelog)

📦 Dependency updates

• Bump plugin-installation-manager-tool version to 2.16.0 (#2516) @github-actions[bot], @dduportal
• Bump Debian version to 20261027 (#2507) @github-actions[bot], @dduportal
• Bump RHEL version to 9.8-1793580630 (#2517) @github-actions[bot], @dduportal
• Bump JDK21 version to 21.0.13+9 (Windows and Linux riscv64) (#2513) @github-actions[bot], @dduportal
• Bump JDK25 version to 25.0.5+8 (Linux riscv64) (#2514) @github-actions[bot], @dduportal