Update docker/login-action digest to cf8514a

Author: renovate[bot]

.github/workflows/main.yml

@@ -37,7 +37,7 @@ jobs:
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
+        uses: docker/login-action@cf8514a65188af1d4f94f8c28a7a4153af1088ce
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}