Multipie version fixed to a specific hash

Packages/manifest.json

     "com.unity.ide.visualstudio": "2.0.5",
     "com.unity.ide.vscode": "1.2.3",
     "com.unity.multiplayer.mlapi": "https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi.git?path=/com.unity.multiplayer.mlapi#develop",
-    "com.unity.multiplayer.multipie": "https://github.com/Unity-Technologies/com.unity.multiplayer.multipie.git",
+    "com.unity.multiplayer.multipie": "https://github.com/Unity-Technologies/com.unity.multiplayer.multipie.git#ec513520a8bba970366c572e88613664a2054353",
     "com.unity.postprocessing": "2.3.0",
     "com.unity.test-framework": "1.1.19",
     "com.unity.textmeshpro": "3.0.1",