Update workflow to be able to publish arm containers

Author: maxdevos49

.github/workflows/checks.yaml

@@ -56,5 +56,5 @@ jobs:
           context: .
           push: true
           tags: ghcr.io/${{ github.repository_owner }}/m4xdev:latest
-          platform: linux/amd64,linux/arm64
+          platform: linux/arm64