Recent React security issue on GitHub Solve.

Hey,
I have seen a a lot of React GitHub repositories recently, a lot of them are dealing with "serialize-javascript security issue" (mine repositories too)

And I found an easy way to solve that issue 🥳

All the problem is outdated yarn create-react-app package that needs a manual upgrade.

So, run:
$ yarn upgrade
In the local repository, and BOOM!

Issue solved 😀

P.S Don't forget to push that tho 😉