feat: Upgrade Gradle and Android build tools for callback system implementation

- Upgrade Android Gradle Plugin from 8.0.0 to 8.4.0
- Upgrade Google Services plugin from 4.3.15 to 4.4.0
- Upgrade Android SDK from API 33 to API 34
- Upgrade Gradle wrapper from 8.13 to 8.14
- Upgrade Android Gradle wrapper from 8.0.2 to 8.6
- Update AndroidX library versions for API 34 compatibility
- Fix Jest environment configuration issue
- All tests passing (58/58) after upgrades

Resolves: Gradle upgrade requirements for callback system implementation

android/build.gradle

@@ -7,8 +7,8 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.0.0'
-        classpath 'com.google.gms:google-services:4.3.15'
+        classpath 'com.android.tools.build:gradle:8.4.0'
+        classpath 'com.google.gms:google-services:4.4.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files