build(jest): Upgrade jest to 24.8.0

[billyvg]

See changelog: https://github.com/facebook/jest/blob/master/CHANGELOG.md

[evanpurkhiser]

Any significant changes?

[billyvg]

Didn't see any, but something definitely changed with module resolution -- had to change some things w/ moment-timezone

[billyvg]

Sigh, this warning keeps getting thrown:

This problem is likely caused by another plugin injecting
"_default" without registering it in the scope tracker. If you are the author
 of that plugin, please use "scope.registerDeclaration(declarationPath)".
The exported identifier "_default" is not declared in Babel's scope tracker
as a JavaScript value binding, and "@babel/plugin-transform-typescript"
never encountered it as a TypeScript type declaration.
It will be treated as a JavaScript value.

[billyvg]

Warnings might be due to babel/babel#10264 which is fixed in babel/babel#10302

[billyvg]

Closing in favor of #15533