Fix for Windows - Backslashes is the escape

[misaku]

Fix for Windows Backslashes is the escape character and will result in an invalid path in settings.gradle
issue:23176
i found this fix in past commit (0.57) and i submit again.

Changelog:

[Android] [Fixed] - Fix for Windows Backslashes is the escape character and will result in an invalid path in settings.gradle

Test Plan:

in windows run react-native link and start error, Backslashes is the escape character and will result in an invalid path in settings.gradle

[analysis-bot]

Code analysis results:

• eslint found some issues.

[pull-bot]

	Warnings
⚠️	📋 Release Notes - This PR appears to be missing Release Notes.
⚠️	❔ Base Branch - The base branch for this PR is something other than master. Are you sure you want to merge these changes into a stable release? If you are interested in backporting updates to an older release, the suggested approach is to land those changes on master first and then cherry-pick the commits into the branch for that release. The Releases Guide has more information.

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[cpojer]

Thanks for sending this Pull Request. We actually removed the local-cli folder from this repository. It is now part of react-native-cli here: https://github.com/react-native-community/react-native-cli

Please submit your Pull Request there and it will make it into the latest version of React Native.