chore(messaging): updating flutter_local_notifications to 12.0.4 in the example app (#10034)

* chore(messaging): updating flutter_local_notifications to 12.0.4 in the example app

* chore(messaging): updating flutter_local_notifications to 12.0.4 in the example app

Author: Lyokone

packages/firebase_messaging/firebase_messaging/example/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.2'
+        classpath 'com.android.tools.build:gradle:4.2.2'
         classpath 'com.google.gms:google-services:4.3.4'
     }
 }

packages/firebase_messaging/firebase_messaging/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip

packages/firebase_messaging/firebase_messaging/example/pubspec.yaml

@@ -2,8 +2,8 @@ name: firebase_messaging_example
 description: Demonstrates how to use the firebase_messaging plugin.
 
 environment:
-  sdk: ">=2.16.0 <3.0.0"
-  flutter: ">=1.12.13+hotfix.5"
+  sdk: '>=2.16.0 <3.0.0'
+  flutter: '>=1.12.13+hotfix.5'
 
 dependencies:
   firebase_core:
@@ -12,7 +12,7 @@ dependencies:
     path: ../
   flutter:
     sdk: flutter
-  flutter_local_notifications: ^9.7.0
+  flutter_local_notifications: ^12.0.4
   http: ^0.13.0
 
 dependency_overrides: