Bump docker/setup-buildx-action in /.github/workflows

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v3.7.0...v3.8.0)

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

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

.github/workflows/pull_request.yaml

@@ -281,7 +281,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.7.0
+        uses: docker/setup-buildx-action@v3.8.0
         with:
           install: true
 

.github/workflows/push.yaml

@@ -172,7 +172,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.7.0
+        uses: docker/setup-buildx-action@v3.8.0
         with:
           install: true
 

.github/workflows/release.yaml

@@ -354,7 +354,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.7.0
+        uses: docker/setup-buildx-action@v3.8.0
         with:
           install: true