Update getSerializableExtra usage for Android 13 or later (#3489)

Adjusted the usage of `getSerializableExtra` to handle its deprecation in Android 13 (API level 33) and later. Implemented the method requiring class type specification for retrieving `Pair<String, Long>` in newer API levels, while maintaining compatibility with older versions using the legacy approach. This change ensures proper functionality across all supported Android versions.

V2rayNG/app/src/main/kotlin/com/v2ray/ang/viewmodel/MainViewModel.kt

@@ -383,7 +383,11 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
                 }
 
                 AppConfig.MSG_MEASURE_CONFIG_SUCCESS -> {
-                    val resultPair = intent.getSerializableExtra("content") as Pair<String, Long>
+                    val resultPair: Pair<String, Long> = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                        intent.getSerializableExtra("content", Pair::class.java) as Pair<String, Long>
+                    } else {
+                        intent.getSerializableExtra("content") as Pair<String, Long>
+                    }
                     MmkvManager.encodeServerTestDelayMillis(resultPair.first, resultPair.second)
                     updateListAction.value = getPosition(resultPair.first)
                 }