Take Mozilla's max SDK version bump

buildSrc/src/main/java/Config.kt

@@ -13,9 +13,9 @@ import java.util.Locale
 
 object Config {
     // Synchronized build configuration for all modules
-    const val compileSdkVersion = 29
+    const val compileSdkVersion = 30
     const val minSdkVersion = 21
-    const val targetSdkVersion = 29
+    const val targetSdkVersion = 30
 
     @JvmStatic
     private fun generateDebugVersionName(): String {