Add tests for react-query devtools

[prateek3255]

Describe the bug
I saw that there aren't any tests as of now for react-query devtools.

If there is no one working on it right now, and there are plans to add tests to devtools, then I would love to work on it.

[TkDodo]

Sure, please go ahead. If you want, enabling type checking for the devtools would also be welcome :)

[prateek3255]

@TkDodo Sorry for being late 😅, Opened PR #2433 with the test cases.

[tannerlinsley]

🎉 This issue has been resolved in version 3.19.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀