RFR: 8339238: Update to use jtreg 7.5.1

[Erik Joelsson]

On Thu, 29 Aug 2024 11:26:03 GMT, Christian Stein <cstein at openjdk.org> wrote:

> Please review the change to update to using jtreg 7.5.1.
> 
> 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.
> 
> _Testing..._ tier 1 — tier 8

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/20766#pullrequestreview-2609473912