Update jenkins/jenkins Docker tag to v2.426.1

This MR contains the following updates:

Package	Type	Update	Change
jenkins/jenkins	ironbank-docker	minor	2.414.3-lts -> 2.426.1-lts
jenkins/jenkins		minor	2.414.3-lts -> 2.426.1-lts
jenkins/jenkins	stage	minor	2.414.3-lts -> 2.426.1-lts

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Release Notes

jenkinsci/docker

v2.426.1

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📦 Jenkins Core updates

• Update to Jenkins 2.426.1 (changelog and upgrade guide )

💥 Breaking changes

• Remove CentOS 7 container images by @​MarkEWaite in https://github.com/jenkinsci/docker/pull/1777
• breaking(Windows): set Java 17 as default by @​lemeurherve in https://github.com/jenkinsci/docker/pull/1773

🚀 New features and improvements

• feat(Windows): refactor build process by @​lemeurherve in https://github.com/jenkinsci/docker/pull/1770
  • Switch from a windowsservercore-1809 Temurin base image to a windowsservercore-ltsc2019 Microsoft base image (#​1775)
  • A proper set of tags is now published, and they include "ltsc2019" instead of only "2019" (#​1489)
  • A JDK11 image is published again alongside the JDK17 one (#​1774)
  • As Java 17 is the default JDK, short tags without "jdk" in them are using Java 17 (#​1724)
• Switch to GA eclipse-temurin:jdk21 images by @​lemeurherve in https://github.com/jenkinsci/docker/pull/1738

🐛 Bug fixes

• fix: add additional tags for default Java images by @​lemeurherve in https://github.com/jenkinsci/docker/pull/1756
• fixup: shortest jdk17 tags only for weekly releases by @​lemeurherve in https://github.com/jenkinsci/docker/pull/1757

📦 Dependency updates

• Bump Debian Bookworm Linux Version to 2023103 by @​github-actions in https://github.com/jenkinsci/docker/pull/1765
• Use JDK 21.0.1+12, not 21+35 by @​MarkEWaite in https://github.com/jenkinsci/docker/pull/1779
• Bump JDK21 preview version (EA) to 21.0.1+12 by @​github-actions in https://github.com/jenkinsci/docker/pull/1743
• Use Java 17.0.9_9 by @​MarkEWaite in https://github.com/jenkinsci/docker/pull/1778
• Bump JDK11 version to 11.0.21_9 by @​github-actions in https://github.com/jenkinsci/docker/pull/1762 & @​lemeurherve in https://github.com/jenkinsci/docker/pull/1782
• chore(deps): bump ubi9/ubi to 9.3-1361 by @​dependabot in https://github.com/jenkinsci/docker/pull/1776
• chore(deps): bump ubi8/ubi to 8.8-1067.1698056881 by @​dependabot in https://github.com/jenkinsci/docker/pull/1760

Full Changelog: https://github.com/jenkinsci/docker/compare/2.414.3...2.426.1

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