bump android gradle plugin to 3.3.1 (#23598)

Summary:
Bump android gradle plugin to 3.3.1

[Android] [Changed] - Bump android Gradle plugin to 3.3.1
Pull Request resolved: https://github.com/facebook/react-native/pull/23598

Differential Revision: D14185571

Pulled By: mdvacca

fbshipit-source-id: 30d353b42acfea3788da5c6876cf1d6d133f4a85

build.gradle

@@ -10,7 +10,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath("com.android.tools.build:gradle:3.3.0")
+        classpath("com.android.tools.build:gradle:3.3.1")
         classpath("de.undercouch:gradle-download-task:3.4.3")
 
         // NOTE: Do not place your application dependencies here; they belong

template/android/build.gradle

@@ -13,7 +13,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath 'com.android.tools.build:gradle:3.3.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files