Add buildx install to github actions

Author: niccokunzmann

.github/workflows/main.yml

@@ -38,6 +38,12 @@ jobs:
     - name: Checkout source
       uses: actions/checkout@v4
 
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
     - name: Build docker image for ${{ env.VERSION }} ${{ env.VARIANT }}
       run: make test