Test with 2.545-rc pre-release

[MarkEWaite]

Test with 2.545-rc pre-release.

Created from Jenkins core pull request:

• Create incremental build for BOM and ATH test jenkins#26051

Also tested in plugin BOM pull request:

• Test Jenkins 2.545 incremental bom#6179

Includes ready to merge pull requests:

• Bump minimum supported remoting version jenkins#26034
• Fix race condition during initial admin account creation jenkins#26036
• Collect telemetry for Java properties jenkins#26038
• Update dependency com.puppycrawl.tools:checkstyle to v12.3.1 jenkins#26041
• Update dependency io.jenkins.plugins:jakarta-xml-bind-api to v4.0.6-12.vb_1833c1231d3 jenkins#26042
• Update dependency io.jenkins.plugins:jaxb to v2.3.9-143.v5979df3304e6 jenkins#26043
• Update dependency io.jenkins.plugins:checks-api to v402 jenkins#26044
• Update dependency org.jenkins-ci.plugins:credentials to v1460 jenkins#26046
• Update dependency io.jenkins.lib:support-log-formatter to v121 - autoclosed jenkins#26048

Reverts pull requests:

• Require Java 21 or newer jenkins#26018
• Update stapler.version to v2065 (major) jenkins#26049

Testing done

Passes many tests in plugin BOM, expected to pass all tests in plugin BOM.

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant pull requests, esp. upstream and downstream changes

[MarkEWaite]

Tests pass except the one test that was noted in #2568 (comment) as flaky.