Bump docker/setup-buildx-action from 3.1.0 to 3.2.0

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@0d103c3...2b51285)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -65,7 +65,7 @@ jobs:
           sed -i 's|\${NGINX_PLUS_VERSION}/||g' docker/Dockerfile
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@0d103c3126aa41d772a8362f6aa67afac040f80c # v3.1.0
+        uses: docker/setup-buildx-action@2b51285047da1547ffb1b2203d8be4c0af6b1f20 # v3.2.0
 
       - name: Build Plus Docker Image
         uses: docker/build-push-action@af5a7ed5ba88268d5278f7203fb52cd833f66d6e # v5.2.0