[skip-release] Update docker/build-push-action action to v7 (#23)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/push.yaml

@@ -40,7 +40,7 @@ jobs:
       - name: login
         run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u "${{ github.actor }}" --password-stdin
 
-      - uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
+      - uses: docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 # v7
         with:
           platforms: linux/amd64,linux/arm64
           build-args: CLI=${{ matrix.cli }}