chore(deps-dev): update zgosalvez/github-actions-ensure-sha-pinned-actions action to v4

Author: renovate[bot]

.github/workflows/pr-actions.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
       - name: Ensure SHA pinned actions
-        uses: zgosalvez/github-actions-ensure-sha-pinned-actions@fc87bb5b5a97953d987372e74478de634726b3e5 # v3.0.25
+        uses: zgosalvez/github-actions-ensure-sha-pinned-actions@9e9574ef04ea69da568d6249bd69539ccc704e74 # v4.0.0
         with:
           # slsa-github-generator requires using a semver tag for reusable workflows. 
           # See: https://github.com/slsa-framework/slsa-github-generator#referencing-slsa-builders-and-generators