up build docker

.github/workflows/build.yml

@@ -148,7 +148,7 @@ jobs:
         with:
           context: "."
           file: ./Dockerfile
-          platforms: ["linux/amd64", "linux/arm64"]
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: lejianwen/rustdesk-api:${{ env.TAG }}
           #           lejianwen/rustdesk-api:${{ env.LATEST_TAG }}