Bump docker/setup-buildx-action from 3.11.1 to 4.0.0

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.11.1 to 4.0.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](e468171a9d...4d04d5d948)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/reproducible-builds.yml

@@ -95,7 +95,7 @@ jobs:
         echo "version=$NODE_VERSION" >> $GITHUB_OUTPUT
 
     - name: Set up docker Buildx
-      uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
+      uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v3
     - name: Build docker image
       uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
       env: