chore(deps): update docker/setup-buildx-action action to v3.8.0 (#296)

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

.github/workflows/ghcr.yml

@@ -22,7 +22,7 @@ jobs:
         uses: docker/[email protected]
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.7.1
+        uses: docker/setup-buildx-action@v3.8.0
 
       - name: Login to GitHub Container Registry
         uses: docker/[email protected]