chore: remove `@react-native-community/cli` from `bin` entrypoints

[szymonrybczak]

Summary:

@react-native-community/cli as a bin entrypoint causes a warning (it cannot contain @ and /`) when installing packages:

❯ yarn
yarn install v1.22.19
warning @react-native-community/[email protected]: Invalid bin entry for "@react-native-community/cli" (in "@react-native-community/cli").

Test Plan:

1. Clone the repository and do all the required steps from the Contributing guide
2. Run this command:

yarn

3. There's no warnings presented in console ✅

Checklist

• [x] Documentation is up to date to reflect these changes.
• [x] Follows commit message convention described in CONTRIBUTING.md