Update jenkins/jenkins Docker tag to v2.450

This MR contains the following updates:

Package	Type	Update	Change
jenkins/jenkins		minor	2.449 -> 2.450
jenkins/jenkins	ironbank-docker	minor	2.449-jdk11 -> 2.450-jdk11
jenkins/jenkins	stage	minor	2.449-jdk11 -> 2.450-jdk11

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Release Notes

jenkinsci/docker (jenkins/jenkins)

v2.450

Compare Source

📦 Jenkins Core updates

• Update to Jenkins 2.450 (changelog)

📦 Dependency updates

• Bump Debian Bookworm Linux Version to 2024031 (#​1839) @​github-actions

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