ci: replace `gradle/wrapper-validation-action` with `gradle/actions/wrapper-validation`

As of `v3` this action has been superceded by `gradle/actions/wrapper-validation`. Any workflow that uses `gradle/wrapper-validation-action@v3` will transparently delegate to `gradle/actions/wrapper-validation@v3`.

Users are encouraged to update their workflows, replacing:
```
uses: gradle/wrapper-validation-action@v3
```

with
```
uses: gradle/actions/wrapper-validation@v3
```

See the [wrapper-validation documentation](https://github.com/gradle/actions/tree/main/wrapper-validation) for up-to-date documentation for `gradle/actions/wrapper-validation`.

.github/workflows/android.yml

@@ -20,7 +20,7 @@ jobs:
         submodules: 'recursive'
 
     - name: Validate Gradle wrapper
-      uses: gradle/wrapper-validation-action@v2
+      uses: gradle/actions/wrapper-validation@v3
 
     - name: Mock files for CI
       run: |

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
         echo "versionName=$(grep -oP 'versionName \"\K[^\"]+' ./app/build.gradle)" >> $GITHUB_ENV
 
     - name: Validate Gradle wrapper
-      uses: gradle/wrapper-validation-action@v2
+      uses: gradle/actions/wrapper-validation@v3
 
     - name: Load secrets
       run: |