Android: Bump gradle version to 5.1.1

Matching changes made in #31521 and #31547 but only in the Jetbrains
IDE config.

platform/android/java/build.gradle

@@ -9,7 +9,7 @@ buildscript {
 //CHUNK_BUILDSCRIPT_REPOSITORIES_END
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:3.2.1'
+		classpath 'com.android.tools.build:gradle:3.4.2'
 //CHUNK_BUILDSCRIPT_DEPENDENCIES_BEGIN
 //CHUNK_BUILDSCRIPT_DEPENDENCIES_END
 	}

platform/android/java/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists