chore(deps): update grafana/shared-workflows/ action to

Author: renovate-sh-app[bot]

.github/workflows/self-zizmor.yaml

@@ -41,7 +41,7 @@ jobs:
       - zizmor-check
     if: ${{ needs.zizmor-check.outputs.found-files == 'true' }}
 
-    uses: grafana/shared-workflows/.github/workflows/reusable-zizmor.yml@5793b5cefc1316d82c0d8842e6458a8a3d8cc847
+    uses: grafana/shared-workflows/.github/workflows/reusable-zizmor.yml@fd77b754a7c75eb4726dd05cda6bbf93ebda3b66
     with:
       runs-on: ${{ !github.event.repository.private && 'ubuntu-latest' || 'ubuntu-arm64-small' }}
       fail-severity: high