Zizimor Github Actions Scan Failure

[lqiu96]

Error:

CRITICAL: The following mandatory checks failed:
- zizmor/unpinned-uses at line 110 of .github/workflows/librarian_generation_check.yaml: unpinned action reference: action is not pinned to a hash (required by blanket policy)
- zizmor/template-injection at line 80 of .github/workflows/update_librarian_googleapis.yaml: code injection via template expansion: may expand into attacker-controllable code

from https://github.com/googleapis/google-cloud-java/actions/runs/30322510469/job/90321095653