Update to Gradle 9 and make more progress toward configuration cache compatibility

[labkey-susanh]

Rationale

Gradle 9.0.0 has been released (and 9.1.0 is coming soon). This release has removed some deprecated features and moves even closer to making the use of the configuration cache the default behavior, so getting out build closer to compatibility will help make the transition easier whenever that happens (Probably Gradle 10, but I'm unsure on the timing of that).

We are also using this major release update for the plugins and for gradle itself to try again to update the xmlBeans version and hope that it will be picked up in all the right places. Version update did not work TransformManager.TestCase.testModuleResourceCache fails.

Related Pull Requests

• Update to Gradle 9 and make more progress toward configuration cache compatibility gradlePlugin#234

Changes

• Update gradle version
• Update to xmlbeansVersion 5.3.0
• Remove unused tasks : showConfigs, listNpmProjects
• Add some messages about compatibility with configuration cache for some tasks
• Update server's npm setup configuration to always use the root directory for workDir and npmWorkDir
• Relocate .restartTrigger to be under build/deploy instead of build/deploy/modules so the latter directory does not get created if not using a local build