ci: remove setup-buildx-action, use default docker driver

Author: PierreQuinton

.github/workflows/build-devcontainer.yml

@@ -30,9 +30,6 @@ jobs:
           echo "name=ghcr.io/$repo_lower/devcontainer:latest" >> $GITHUB_OUTPUT
           echo "cache-ref=ghcr.io/$repo_lower/devcontainer:cache" >> $GITHUB_OUTPUT
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Log in to GitHub Container Registry
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v3

.github/workflows/checks.yml

@@ -78,9 +78,6 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
         with: