[CI] JdkDownloadPluginFuncTest transforms of type UnzipTransform are kept across builds failing

[iverase]

Build scan:
https://gradle-enterprise.elastic.co/s/ernsozqztszym/tests/:integTest/org.elasticsearch.gradle.internal.JdkDownloadPluginFuncTest/transforms%20of%20type%20UnzipTransform%20are%20kept%20across%20builds

Reproduction line:
null

Applicable branches:
main

Reproduces locally?:
Didn't try

Failure history:
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.gradle.internal.JdkDownloadPluginFuncTest&tests.test=transforms%20of%20type%20UnzipTransform%20are%20kept%20across%20builds

Failure excerpt:

java.io.IOException: Failed to copy full contents from '/tmp/junit1699766051303869009/junit4162579748942594183/caches/journal-1/journal-1.lock' to 'build/test-debug/junit1699766051303869009/junit4162579748942594183/caches/journal-1/journal-1.lock'

  at org.apache.commons.io.FileUtils.doCopyFile(FileUtils.java:1087)
  at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1358)
  at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1356)
  at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1356)
  at org.apache.commons.io.FileUtils.doCopyDirectory(FileUtils.java:1356)
  at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1319)
  at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1191)
  at org.apache.commons.io.FileUtils.copyDirectory(FileUtils.java:1160)
  at org.elasticsearch.gradle.fixtures.AbstractGradleFuncTest.cleanup(AbstractGradleFuncTest.groovy:51)

[elasticsearchmachine]

Pinging @elastic/es-delivery (Team:Delivery)

[mark-vieira]

@breskeby did we want to keep the bits here commented out? Or perhaps could we be smarter here and only keep the temporary directory contents when the test failed?

[breskeby]

the passing down of the sys prop was borked somehow that's why I have that on my list. I check if there's a convenient way to make this smarter

[breskeby]

@mark-vieira #89296

[breskeby]

This issue should be mitigated by #89296 and #89304