fix: pin 4 unpinned action(s),extract 303 unsafe expression(s) to env vars by dagecko · Pull Request #14937

fix: pin 4 unpinned action(s),extract 303 unsafe expression(s) to env vars by dagecko · Pull Request #14937 · redis/redis

Cleaning up quoting on extracted env var references for consistency
and correctness.

Note: daily.yml test args (INPUT_TEST_ARGS, INPUT_CLUSTER_TEST_ARGS)
are intentionally left unquoted as they contain multiple space-separated
flags that need word splitting to work correctly.

Remove workflow_dispatch input extractions from daily.yml per
maintainer feedback — those inputs are maintainer-only and do not
need intermediate env vars.

Keep:
- codecov/codecov-action SHA pin (supply chain hardening)
- COVERITY_SCAN_TOKEN / COVERITY_SCAN_EMAIL moved to env blocks