[crac] RFR: 8347991: [CRaC] ContainerPidAdjustmentTest takes too long to run

[Timofei Pushkin]

CRaC tests that use Docker containers now can reuse a Docker image.

In GitHub Actions for `jdk/crac/ContainerPidAdjustmentTest` execution time of runs 2–14 dropped from 4–5s to 0.5–1s on each run, so this should save almost a minute for the whole test.

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Commit messages:
 - Pass container reuse options in GA
 - ContainerPidAdjustmentTest takes too long to run

Changes: https://git.openjdk.org/crac/pull/186/files
  Webrev: https://webrevs.openjdk.org/?repo=crac&pr=186&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347991
  Stats: 19 lines in 2 files changed: 17 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/crac/pull/186.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/186/head:pull/186

PR: https://git.openjdk.org/crac/pull/186