fix build pipeline

Author: JohannesHepp

.github/workflows/release.yml

@@ -36,7 +36,10 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: true
-          tags: ghcr.io/${{ github.repository }}:${{ steps.version.outputs.VERSION }}
+          tags: |
+            ghcr.io/${{ github.repository }}:${{ steps.version.outputs.version }}
+            ghcr.io/${{ github.repository }}:latest
           cache-from: type=gha
           cache-to: type=gha,mode=max