ci: empty commit to validate cache shrink + CI-unittests disable

Final validation of the CI cascade after:
- #5603 (GH-Actions): ci-builds.yml strips unit binaries + test/deps
  from the _test cache to stay under the 10 GB repo quota
- #5604 (v3.0): CI-unittests workflow_run trigger removed so it stops
  firing automatically

Expected signals:
- CI-builds log shows 'Compiled N unit test binaries' (N>0), then
  'Deleted N unit test binaries', then 'test/deps runtime-dependency
  check passed', then 'Deleted test/deps'
- _test cache save size ~1 GB compressed (down from ~4 GB)
- CI-legacy-g*, CI-mysql84-g*, CI-basictests get past 'Cache restore test'
  and actually run their tests for realistic durations (minutes, not
  seconds-and-fail)
- proxysql-tester.py reports PASS N/N with N > 0
- CI-unittests does NOT appear in the cascade (disabled)
v3.0_pgsql-copy-matcher-5568
Rene Cannao 2 months ago
parent 019d663204
commit 2abbc4f313

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