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

Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>

Author: renovate-sh-app[bot]

.github/workflows/build-and-push.yml

@@ -25,7 +25,7 @@ jobs:
           echo "DOCKER_TAG=$(cat .tag)" >> $GITHUB_ENV
 
       - name: Build And Push
-        uses: grafana/shared-workflows/actions/push-to-gar-docker@fa48192dac470ae356b3f7007229f3ac28c48a25 # main
+        uses: grafana/shared-workflows/actions/push-to-gar-docker@b545d8afe61d00248004bf0f5fe076d31037290e # main
         with:
           # Don't push from forks
           push: ${{ github.ref_name == 'main' || github.event.pull_request.head.repo.full_name == github.repository }}