[tests] Fix flaky flight tests (#35513) #1603

Job	Run time
Discover yarn workspaces	7s
Jest babel-plugin-react-compiler	49s
Lint babel-plugin-react-compiler	29s
Test make-read-only-util	25s
Test react-compiler-healthcheck	21s
Test react-compiler-runtime	21s
Test react-mcp-server	26s
Test eslint-plugin-react-compiler	39s
Test snap	22s
Test babel-plugin-react-compiler	1m 2s
Test react-forgive	47s
	5m 48s

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