[google_maps_flutter][android] suppress unchecked cast warning (#4409)

diff --git a/packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md b/packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md
index 4bc4ce3..1171dcb 100644
--- a/packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md
+++ b/packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.1.1
+
+* Suppresses unchecked cast warning.
+
 ## 2.1.0
 
 * Add iOS unit and UI integration test targets.
diff --git a/packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/TileProviderController.java b/packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/TileProviderController.java
index f05d045..73530d1 100644
--- a/packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/TileProviderController.java
+++ b/packages/google_maps_flutter/google_maps_flutter/android/src/main/java/io/flutter/plugins/googlemaps/TileProviderController.java
@@ -74,6 +74,7 @@
     }
 
     @Override
+    @SuppressWarnings("unchecked")
     public void success(Object data) {
       result = (Map<String, ?>) data;
       countDownLatch.countDown();
diff --git a/packages/google_maps_flutter/google_maps_flutter/pubspec.yaml b/packages/google_maps_flutter/google_maps_flutter/pubspec.yaml
index dae5a28..72054d3 100644
--- a/packages/google_maps_flutter/google_maps_flutter/pubspec.yaml
+++ b/packages/google_maps_flutter/google_maps_flutter/pubspec.yaml
@@ -2,7 +2,7 @@
 description: A Flutter plugin for integrating Google Maps in iOS and Android applications.
 repository: https://github.com/flutter/plugins/tree/master/packages/google_maps_flutter/google_maps_flutter
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.1.0
+version: 2.1.1
 
 environment:
   sdk: ">=2.14.0 <3.0.0"