setup-gradle v4 + Remove unnecessary Gradle Wrapper Validation (#47389)

Summary:
As per: https://github.com/gradle/actions#the-wrapper-validation-action

> Starting with v4 the setup-gradle action will [perform wrapper validation](https://github.com/gradle/actions/blob/main/docs/setup-gradle.md#gradle-wrapper-validation) on each execution. If you are using setup-gradle in your workflows, it is unlikely that you will need to use the wrapper-validation action.

I'm moving to setup-gradle v4 and remove this unnecessary extra action.

## Changelog:

[INTERNAL] - setup-gradle v4 + Remove unnecessary Gradle Wrapper Validation

Pull Request resolved: https://github.com/facebook/react-native/pull/47389

Test Plan: CI

Reviewed By: blakef

Differential Revision: D65435069

Pulled By: cortinico

fbshipit-source-id: c28b4d520e91fea9c59a341fb94598db5fc69900

.github/actions/setup-gradle/action.yml

@@ -8,7 +8,7 @@ runs:
   using: "composite"
   steps:
     - name: Setup gradle
-      uses: gradle/actions/setup-gradle@v3
+      uses: gradle/actions/setup-gradle@v4
       with:
         gradle-version: wrapper
         # We want the Gradle cache to be written only on main/-stable branches run, and only for jobs with `cache-read-only` == false (i.e. `build_android`).

.github/workflows/gradle-wrapper-validation.yml

@@ -1,13 +0,0 @@
-name: "Validate Gradle Wrapper"
-
-on:
-  push:
-  pull_request:
-
-jobs:
-  validation:
-    name: "Validation"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gradle/actions/wrapper-validation@v3