fix: bump gradle wrapper version to 7.5.1 & not use app node_modules when running tasks from repo

[kkafar]

Description

Basically tasks run from react-native-screens repo (such as linting & formating) would fail due to outdated gradle wrapper version (and the fact that we re using newer JDK now).

There was a second issue: when running tasks from react-native-screens project as gradle's rootProject and simultaneously having react-native repo side-by-side to react-native-screens
repo on disk - our current react native directory resolution algorithm would have found it and attempt to use to retrieve RN version, but:

1. the gradle.properties file is not there,
2. retrieved version could be out of sync with what's in project.

Changes

• Bumped gradle wrapper version to 7.5.1 (we were still on major 6).
• Adjusted the react native directory algorithm just a bit, so that when running in context of screens repo we skip one code path.

There was also possibility to "reorder the ifs" in resolveReactNativeDir function, however this could possible cause issues in user projects - we want first to look for app's node modules
and later for project node modules.

Test code and steps to reproduce

yarn lint-android, yarn format-android, etc. should now work just fine when you re on JDK 17+ & have react-native repo side by side to react-native-screens.

Checklist

• Included code example that can be used to test this change
• Updated TS types
• Updated documentation:
  • https://github.com/software-mansion/react-native-screens/blob/main/guides/GUIDE_FOR_LIBRARY_AUTHORS.md
  • https://github.com/software-mansion/react-native-screens/blob/main/native-stack/README.md
  • https://github.com/software-mansion/react-native-screens/blob/main/src/types.tsx
  • https://github.com/software-mansion/react-native-screens/blob/main/src/native-stack/types.tsx
• Ensured that CI passes

[alduzy]

Looks good 🚀