Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35094
Currently the build on console is firing this warning:
```
> Task :app:processDebugMainManifest
package="com.androidtemplateproject" found in source AndroidManifest.xml: /tmp/AndroidTemplateProject/android/app/src/main/AndroidManifest.xml.
Setting the namespace via a source AndroidManifest.xml's package attribute is deprecated.
Please instead set the namespace (or testNamespace) in the module's build.gradle file, as described here: https://developer.android.com/studio/build/configure-app-module#set-namespace
This migration can be done automatically using the AGP Upgrade Assistant, please refer to https://developer.android.com/studio/build/agp-upgrade-assistant for more information.
```
This diff fixes it so users won't see it anymore on 0.71
Changelog:
[Android] [Fixed] - Sets the namespace via Gradle and not via AndroidManifest
Reviewed By: cipolleschi
Differential Revision: D40724654
fbshipit-source-id: 9b01748a22e9993b60e17bf25acbc68ba8e4eb77
cec9a34f6c