Roll Fuchsia Mac SDK from HxpwvvbQdk54L6_8q... to MUvFS0baOnigVUIND... (flutter/engine#39105)

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DEPS

@@ -816,7 +816,7 @@ deps = {
      'packages': [
        {
         'package': 'fuchsia/sdk/core/mac-amd64',
-        'version': 'HxpwvvbQdk54L6_8qWhghg4Y41JUdLqdf3GcEiFgVnoC'
+        'version': 'MUvFS0baOnigVUINDHxxvk2wMsqNmkv1OqmEm2nmABAC'
        }
      ],
      'condition': 'host_os == "mac" and not download_fuchsia_sdk',