github: update build-containr workflow actions

This removes the warnings about Node 10 deprecation in the GitHub CI.

Signed-off-by: David Bauer <mail@david-bauer.net>

.github/workflows/build-container.yml

@@ -23,9 +23,9 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Log in to the Container registry
         uses: docker/login-action@3d58c274f17dffee475a5520cbe67f0a882c4dbb
         if: ${{ github.repository_owner == 'freifunk-gluon' && github.event_name == 'push' }}