[jdk17u-dev] RFR: 8331431: Update to use jtreg 7.4

[Goetz Lindenmaier]

I backport this for parity with 17.0.19-oracle.

Trivial resolves in lib-tests.m4 and github-actions.conf. Might be clean anyways.

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Commit messages:
 - backport 8331431 from 21

Changes: https://git.openjdk.org/jdk17u-dev/pull/4219/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4219&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8331431
  Stats: 11 lines in 8 files changed: 0 ins; 0 del; 11 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4219.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4219/head:pull/4219

PR: https://git.openjdk.org/jdk17u-dev/pull/4219