Update CLI to use @react-native-community/cli init instead of react-native init

[Yajur-Grover]

Summary

When trying to build a vanilla library with a version of React Native 0.76 (e.g 0.76.0-nightly-20240701-9f6cb21ed), the script fails with the following error:

ℹ Using [email protected] for the example
⠹ Generating example app

⚠️ The `init` command is deprecated.

- Switch to npx @react-native-community/cli init for the identical behavior.
- Refer to the documentation for information about alternative tools: https://reactnative.dev/docs/getting-started
C:\new-account-repos\react-native-builder-bob\packages\create-react-native-library\lib\utils\spawn.js:27
        reject(new Error(stderr.trim()));

Allows creating a vanilla library with CRNL on 0.76 versions of react-native. This issue was hit in the RNW repo where we are trying to integrate 0.76.0-nightly-20240701-9f6cb21ed.

Test Plan

1. Change the create-react-native-library.cmd line 3 to the following:
   node "%~dp0\create-react-native-library" %* --slug testcli --description testcli --author-name "React-Native-Windows Bot" --author-email [email protected] --author-url http://example.com/ --repo-url http://example.com/ --languages kotlin-objc --type module-new --react-native-version 0.76.0-nightly-20240701-9f6cb21ed --example vanilla testcli
2. Run yarn watch
3. Run packages/create-react-native-library/bin/create-react-native-library