feat(sec): harden GHA ref by using its SHA ID to prevent accidental usage of compromised actions (#38782)

Signed-off-by: hainenber <dotronghai96@gmail.com>
(cherry picked from commit 83823911b5)

.github/workflows/pre-commit.yml

@@ -21,7 +21,7 @@ jobs:
         python-version: ["current", "previous"]
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           persist-credentials: false
           submodules: recursive
@@ -38,6 +38,7 @@ jobs:
           echo "HOMEBREW_CELLAR=$HOMEBREW_CELLAR" >>"${GITHUB_ENV}"
           echo "HOMEBREW_REPOSITORY=$HOMEBREW_REPOSITORY" >>"${GITHUB_ENV}"
           brew install norwoodj/tap/helm-docs
+
       - name: pre-commit
         run: |
           set +e  # Don't exit immediately on failure