[jdk21u-dev] RFR: 8318490: Increase timeout for JDK tests that are close to the limit when run with libgraal

[Goetz Lindenmaier]

I backport this for parity with 21.0.3-oracle.

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

Commit messages:
 - Backport 6f263111a1812873291e91870e341ccce804d049

Changes: https://git.openjdk.org/jdk21u-dev/pull/142/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=142&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318490
  Stats: 41 lines in 41 files changed: 0 ins; 0 del; 41 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/142.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/142/head:pull/142

PR: https://git.openjdk.org/jdk21u-dev/pull/142