chore(deps): update docker/setup-buildx-action digest to 7c525be (#27)

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

Author: renovate[bot]

.github/workflows/publish.yml

@@ -31,7 +31,7 @@ jobs:
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@e600775e527acba2317260cadb64b7e19efd5362
+        uses: docker/setup-buildx-action@7c525be6cc8a882d5163ce04293cac18617c709f
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action