Update docker/login-action digest to 29df2a9

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -54,7 +54,7 @@ jobs:
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@3d58c274f17dffee475a5520cbe67f0a882c4dbb
+        uses: docker/login-action@29df2a9f8c71c2dfe7db598180a0460355ec1c00
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}