8376355: Update to use jtreg 8.2.1

[GoeLin]

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• I confirm that I make this contribution in accordance with the OpenJDK Interim AI Policy.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8376355 needs maintainer approval

Integration blocker

 ⚠️ Dependency #593 must be integrated first

Issue

• JDK-8376355: Update to use jtreg 8.2.1 (Enhancement - P3)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/598/head:pull/598
$ git checkout pull/598

Update a local copy of the PR:
$ git checkout pull/598
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/598/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 598

View PR using the GUI difftool:
$ git pr show -t 598

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/598.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back goetz! A progress list of the required criteria for merging this PR into pr/593 will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (56140154)