RFR: 8357141: Update to use jtreg 7.5.2 [v2]

[Christian Stein]

> Please review the change to update to using jtreg 7.5.2.
> 
> The primary change is to the `jib-profiles.js` file, which specifies the version of jtreg to use, for those systems that rely on this file. In addition, the `requiredVersion` has been updated in the various `TEST.ROOT` files.
> 
> Tested with tier 1 — tier 8.

Christian Stein 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 three additional commits since the last revision:

 - Merge branch 'openjdk:master' into 8357141-use-jtreg-7.5.2
 - 8357141: Update to use jtreg 7.5.2
 - 8357141: Update to use jtreg 7.5.2

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/25263/files
  - new: https://git.openjdk.org/jdk/pull/25263/files/d2bd463f..326da36b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25263&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25263&range=00-01

  Stats: 59118 lines in 898 files changed: 34137 ins; 20417 del; 4564 mod
  Patch: https://git.openjdk.org/jdk/pull/25263.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25263/head:pull/25263

PR: https://git.openjdk.org/jdk/pull/25263