chore(deps): pin github action dependencies (#16923)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/docs-destroy.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
       - name: Destroy Docs Subdomain
         env:
@@ -18,7 +18,7 @@ jobs:
           CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           TF_STATE_POSTGRES_CONN_STR: ${{ secrets.TF_STATE_POSTGRES_CONN_STR }}
-        uses: gruntwork-io/terragrunt-action@v2
+        uses: gruntwork-io/terragrunt-action@9559e51d05873b0ea467c42bbabcb5c067642ccc # v2
         with:
           tg_version: "0.58.12"
           tofu_version: "1.7.1"
@@ -26,7 +26,7 @@ jobs:
           tg_command: "destroy -refresh=false"
 
       - name: Comment
-        uses: actions-cool/maintain-one-comment@v3
+        uses: actions-cool/maintain-one-comment@4b2dbf086015f892dcb5e8c1106f5fccd6c1476b # v3
         with:
           number: ${{ github.event.number }}
           delete: true