android: Follow upstream template re Flipper

This squashes three small Flipper-related commits as they affect the
template RN app between RN v0.67.4 and v0.68.5:

  facebook/react-native@ce74aa4ed Add ReactInstanceEventListener for Venice and expose in FbReactInstanceHolder
  facebook/react-native@8bd3edec8 Update copyright headers from Facebook to Meta
  facebook/react-native@50057158c Bump Flipper to 0.125.0

The change touching ReactNativeFlipper.java requires the RN v0.68
upgrade in order to compile, so we do it after the upgrade.

Author: gnprice

android/app/src/debug/java/com/zulipmobile/ReactNativeFlipper.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and its affiliates.
  *
  * <p>This source code is licensed under the MIT license found in the LICENSE file in the root
  * directory of this source tree.
@@ -19,6 +19,7 @@
 import com.facebook.flipper.plugins.network.NetworkFlipperPlugin;
 import com.facebook.flipper.plugins.react.ReactFlipperPlugin;
 import com.facebook.flipper.plugins.sharedpreferences.SharedPreferencesFlipperPlugin;
+import com.facebook.react.ReactInstanceEventListener;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.modules.network.NetworkingModule;
@@ -51,7 +52,7 @@ public void apply(OkHttpClient.Builder builder) {
             ReactContext reactContext = reactInstanceManager.getCurrentReactContext();
             if (reactContext == null) {
                 reactInstanceManager.addReactInstanceEventListener(
-                        new ReactInstanceManager.ReactInstanceEventListener() {
+                        new ReactInstanceEventListener() {
                             @Override
                             public void onReactContextInitialized(ReactContext reactContext) {
                                 reactInstanceManager.removeReactInstanceEventListener(this);

android/gradle.properties

@@ -28,7 +28,7 @@ android.useAndroidX=true
 android.enableJetifier=true
 
 # Version of flipper SDK to use with React Native
-FLIPPER_VERSION=0.99.0
+FLIPPER_VERSION=0.125.0
 
 # Use this property to specify which architecture you want to build.
 # You can also override it from the CLI using