[jdk17u-dev] RFR: 8314333: Update com/sun/jdi/ProcessAttachTest.java to use ProcessTools.createTestJvm(..)

[Goetz Lindenmaier]

I backport this to improve testing in 17

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Commit messages:
 - Backport 7342f5a0337df88b6787c4c2b53c8007667b6636

Changes: https://git.openjdk.org/jdk17u-dev/pull/2950/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2950&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314333
  Stats: 5 lines in 1 file changed: 0 ins; 3 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2950.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2950/head:pull/2950

PR: https://git.openjdk.org/jdk17u-dev/pull/2950