[CE] Run review-qa-all in parallel

What does this MR do?

Run the review-qa-all E2E tests in parallel using knapsack.

For this iteration I've generated a knapsack report in CI (review-qa-all and review-qa-all-quarantine jobs), combined them manually and committed the merged report.

See https://gitlab.com/gitlab-org/gitlab-ce/issues/61215

(EE port for the sake of ee_compat_check, which blocked the pipeline stages after test: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/12695)

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content