Make sure @apollo/client passes React 18 concurrent rendering tests

[hwillson]

We'll be using this test application (which has been updated to use @apollo/client):

https://github.com/dai-shi/will-this-react-global-state-work-in-concurrent-rendering

[brainkim]

Issues and discussions to track:

• Support for React 18 testing-library/react-testing-library#509
• feat: Use concurrent React when available testing-library/react-testing-library#937
• Package to support React 18 testing-library/react-hooks-testing-library#654
• Support React 18 testing-library/react-hooks-testing-library#655
• Planned changes to `act` testing API reactwg/react-18#23