Update ci.yaml

Author: Akvanvig

.github/workflows/ci.yaml

@@ -60,6 +60,7 @@ jobs:
       with: 
         context: .
         file: cmd/roboto/Dockerfile
+        platforms: 'linux/arm/v7,linux/arm64,linux/amd64'
         push: true
         tags: ${{ steps.metadata.outputs.tags }}
         labels: ${{ steps.metadata.outputs.labels }}