RFR: 7903744: Update various versions used by jtreg's IDEA plugin [v2]

[Chen Liang]

> Now that ant is no longer bundled with IDEA, it has to be defined in a different way. And intellij IDEA changed their gradle plugin for IDE plugins so I did a migration to their new gradle plugin, which requires bumping Gradle.

Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - More cleanup
 - Update versions again
 - Merge branch 'master' into feature/idea-plugin-java22
 - Fix a few issues
 - 7903744: Update various versions used by jtreg's IDEA plugin

-------------

Changes:
  - all: https://git.openjdk.org/jtreg/pull/201/files
  - new: https://git.openjdk.org/jtreg/pull/201/files/909bb460..5b09cb52

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jtreg&pr=201&range=01
 - incr: https://webrevs.openjdk.org/?repo=jtreg&pr=201&range=00-01

  Stats: 4092 lines in 56 files changed: 3565 ins; 460 del; 67 mod
  Patch: https://git.openjdk.org/jtreg/pull/201.diff
  Fetch: git fetch https://git.openjdk.org/jtreg.git pull/201/head:pull/201

PR: https://git.openjdk.org/jtreg/pull/201