Enable Xlint:deprecation,unchecked for popup-menu-android (#55455)

Summary:
Pull Request resolved: #55455

Let's turn on those 2 compilation flags now that the warnigns have been suppressed.

Changelog:
[Internal] [Changed] -

Reviewed By: cipolleschi

Differential Revision: D92532099

fbshipit-source-id: fc252587fbb2521cc5ffdeae9284ca88a5453fe2

Author: cortinico

packages/react-native-popup-menu-android/android/build.gradle.kts

@@ -29,6 +29,11 @@ kotlin {
   explicitApi()
 }
 
+tasks.withType<JavaCompile>().configureEach {
+  options.compilerArgs.add("-Xlint:deprecation,unchecked")
+  options.compilerArgs.add("-Werror")
+}
+
 dependencies {
   // Build React Native from source
   implementation(project(":packages:react-native:ReactAndroid"))