Pull hotfix into reanimated2

[elliottkember]

• Hotfix: allow transform to be a string in useAnimatedStyle #4881

This is a copy of the above PR, against Reanimated2 branch

Summary
A few months back RN facebook/react-native#37543 that transform could be a string - but it's missing in RN 0.72.3 and causes some errors when current version of react-native-reanimated is used with RN 0.71. This PR hotfixes that, allowing transform to be a string.

Keep in mind that it's definitely not the final form of how useAnimatedStyle types should look like - it will be refactored in the future.

Test plan
This snippet yields errors on 0.71.12 without this change

[tjzel]

Hi @elliottkember! Thanks for your pull request - unfortunately we don't plan to make any more releases to Reanimated 2. If you need this change I strongly recommend using patch-package or (preferably) upgrade to Reanimated 3 if possible.