fix issue #51297 which addresses allWarningsAsErrors type error (#51300)

Summary:
Resolved a build error [issue https://github.com/facebook/react-native/issues/51297](https://github.com/facebook/react-native/issues/51297) caused by assigning a Boolean to a Property<Boolean>.
Switched from direct assignment to using .set(...) to correctly configure allWarningsAsErrors from project properties.

## Changelog:

- Gradle fix: assign allWarningsAsErrors using .set() for Property<Boolean>

<!-- Help reviewers and the release process by writing your own changelog entry.

Pick one each for the category and type tags:

[ANDROID|GENERAL|IOS|INTERNAL] [BREAKING|ADDED|CHANGED|DEPRECATED|REMOVED|FIXED|SECURITY] - [ANDROID] [FIXED]

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Pull Request resolved: https://github.com/facebook/react-native/pull/51300

Test Plan:
Fixes build failure with React Native v0.79.2 and Gradle v8.0.
```
npm run start
npm run android
```
no more build errors

Reviewed By: cortinico

Differential Revision: D74706741

Pulled By: rshest

fbshipit-source-id: 31ec923f49a6da63fb5abb464bc38b99b1e8650a