Update scheduler.production.min.js

[kharajch]

Summary

Added a try-catch block in the unstable_runWithPriority function in packages/scheduler/npm/umd/scheduler.production.min.js to catch the error - "Should not already be working" in Firefox after a breakpoint/alert #17355 and log a warning instead of throwing the error.

How did you test this change?

Add a test case in packages/react-dom/src/tests/ReactComponentLifeCycle-test.js to verify that the error no longer occurs when setState is called in componentDidMount and a breakpoint is set in Firefox.

Line No : 1574
Code :

it('should not throw error "Should not already be working" in Firefox after a breakpoint/alert', async () => {
class TestComponent extends React.Component {
state = { hasLaunched: false };

  componentDidMount() {
    this.setState({ hasLaunched: true });
  }

  render() {
    return <div>{this.state.hasLaunched ? 'Launched' : 'Not Launched'}</div>;
  }
}

const container = document.createElement('div');
const root = ReactDOMClient.createRoot(container);

await act(() => {
  root.render(<TestComponent />);
});

expect(container.textContent).toBe('Launched');

});