Plugin Compatibility Tester 0.4.0 🎅

🚨 Removed

• JENKINS-58113 - Remove the Internal Maven Mode from PCT (#194) @oleg-nenashev

🚀 New features and improvements

• Use maven from PATH when "-mvn" is not specified (#194) @oleg-nenashev
• Include Docker client executable in the PCT Docker image (#207) @bmunozm

🐛 Bug Fixes

• Fix the default Java version capturing in PluginCompatTesterConfig#getTestJavaVersion() when other options are disabled (#203) @basil
• Update Update Center URL to always use HTTPS (#213) @bmunozm
• Fix SpotBugs issues (#203) @basil

📦 Dependency updates

• Bump jenkins from 1.52 to 1.53 (#210) @dependabot
• Bump plexus-utils from 3.2.1 to 3.3.0 (#204) @dependabot
• Update parent POM from 1.50 to 1.52 (#201) @basil

📝 Documentation updates

• Remove references to Jenkins Wiki, move the remaining info to GitHub (#208) @oleg-nenashev

👻 Maintenance

• JENKINS-60583 - Disable the unstable JCasC integration Test (#214) @oleg-nenashev
• Add CODEOWNERS to automate review requests (#211) @oleg-nenashev
• Update Jenkinsfile to use the infra.runMaven() step with Azure mirror settings and other performance tweaks (#209) @oleg-nenashev
• More code cleanup (#200) @basil