[jdk21u-dev] RFR: 8362602: Add test.timeout.factor to CompileFactory to avoid test timeouts

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

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

Commit messages:
 - Backport f8c8bcf4fd31509fdb40d32e8e16ba4fba1f987d

Changes: https://git.openjdk.org/jdk21u-dev/pull/2243/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2243&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8362602
  Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2243.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2243/head:pull/2243

PR: https://git.openjdk.org/jdk21u-dev/pull/2243