Upgrade to react-scripts 0.8.1

[joshwcomeau]

If you are reporting a bug, please fill in below. Otherwise feel free to remove this template entirely.

Can you reproduce the problem with latest npm?

Yes

Description

react-scripts introduced a bug in which Jest will auto-mock files in different directories.

I am assuming the latest version of custom-react-scripts relies on react-scripts 0.8.0, because I'm experiencing this issue with it.

Upgrading to 0.8.1 should fix it :)

Expected behavior

The functions should be imported properly, so that they can be genuinely tested.

Actual behavior

The functions imported are replaced with a string that reads 'test-file-stub`

[kitze]

Done! 🙌