Update docker/login-action digest to 29df2a9

Author: renovate[bot]

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

@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Log in to the Container registry
-        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        uses: docker/login-action@29df2a9f8c71c2dfe7db598180a0460355ec1c00
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}