Update gradle plugin to 4.2.x to be compatible with java 11

Author: ggfan

Unsplash/app/build.gradle

@@ -17,17 +17,17 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "28.0.3"
+    compileSdkVersion 30
+    buildToolsVersion "30.0.2"
 
-    dataBinding {
-        enabled = true
+    buildFeatures {
+        dataBinding = true
     }
 
     defaultConfig {
         applicationId "com.example.android.unsplash"
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
     }

Unsplash/build.gradle

@@ -19,10 +19,10 @@
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -32,6 +32,6 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }

Unsplash/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Aug 27 12:07:02 BST 2019
+#Wed Jun 02 13:28:22 PDT 2021
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+zipStoreBase=GRADLE_USER_HOME