Bump version to 2.2.0 and update changelog. (#680)

* Bump version to 2.2.0 and update changelog.

Author: jjliu15

packages/google_mobile_ads/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 2.2.0
+* Updates GMA iOS dependency to 9.11.0. This fixes dependency issues in apps that
+  also depend on the latest version of Firebase: https://github.com/googleads/googleads-mobile-flutter/issues/673
+* Adds the field `responseExtras` to `ResponseInfo`. See `ResponseInfo` docs:
+  * https://developers.google.com/admob/flutter/response-info
+  * https://developers.google.com/ad-manager/mobile-ads-sdk/flutter/response-info
+* Fixes a crash introduced in 2.1.0, [issue #675](https://github.com/googleads/googleads-mobile-flutter/issues/675)
+
 ## 2.1.0
 * Updates GMA dependencies to 21.2.0 (Android) and 9.10.0 (iOS):
 * Adds `loadedAdapterResponseInfo` to `ResponseInfo` and the following fields to

packages/google_mobile_ads/android/src/main/java/io/flutter/plugins/googlemobileads/Constants.java

@@ -17,7 +17,7 @@
 /** Constants used in the plugin. */
 public class Constants {
   /** Version request agent. Should be bumped alongside plugin versions. */
-  public static final String REQUEST_AGENT_PREFIX_VERSIONED = "Flutter-GMA-2.1.0";
+  public static final String REQUEST_AGENT_PREFIX_VERSIONED = "Flutter-GMA-2.2.0";
 
   static final String ERROR_CODE_UNEXPECTED_AD_TYPE = "unexpected_ad_type";
 }

packages/google_mobile_ads/ios/Classes/FLTConstants.h

@@ -13,4 +13,4 @@
 // limitations under the License.
 
 /** Versioned request agent string. */
-#define FLT_REQUEST_AGENT_VERSIONED @"Flutter-GMA-2.1.0"
+#define FLT_REQUEST_AGENT_VERSIONED @"Flutter-GMA-2.2.0"

packages/google_mobile_ads/pubspec.yaml

@@ -13,7 +13,7 @@
 #  limitations under the License.
 
 name: google_mobile_ads
-version: 2.1.0
+version: 2.2.0
 description: Flutter plugin for Google Mobile Ads, supporting
   banner, interstitial (full-screen),  rewarded and native ads
 repository: https://github.com/googleads/googleads-mobile-flutter/tree/main/packages/google_mobile_ads