Update dep versions for showcase App.

Change-Id: I74524a22d1b92abb03ad07b11c655465a1c40af9

android/material-showcase/app/build.gradle

@@ -3,11 +3,11 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         applicationId "com.google.mlkit.md"
         minSdkVersion 19
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -44,21 +44,21 @@ androidExtensions {
 
 dependencies {
     implementation 'com.android.volley:volley:1.1.1'
-    implementation 'com.google.android.material:material:1.2.0'
+    implementation 'com.google.android.material:material:1.2.1'
     implementation "android.arch.lifecycle:extensions:1.1.1"
     implementation "androidx.annotation:annotation:1.1.0"
-    implementation "androidx.core:core-ktx:1.3.1"
+    implementation "androidx.core:core-ktx:1.3.2"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0"
-    implementation 'androidx.preference:preference:1.1.1'
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72"
+    implementation 'androidx.preference:preference-ktx:1.1.1'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.21"
 
     // Barcode model
-    implementation 'com.google.mlkit:barcode-scanning:16.0.3'
+    implementation 'com.google.mlkit:barcode-scanning:16.1.1'
 
     // Object feature and model
-    implementation 'com.google.mlkit:object-detection:16.2.1'
+    implementation 'com.google.mlkit:object-detection:16.2.3'
     // Custom model
-    implementation 'com.google.mlkit:object-detection-custom:16.2.1'
+    implementation 'com.google.mlkit:object-detection-custom:16.3.1'
 
-    api 'com.google.guava:guava:27.1-jre'
+    api 'com.google.guava:guava:30.1-jre'
 }

android/material-showcase/build.gradle

@@ -8,13 +8,13 @@ buildscript {
 
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.72"
+        classpath 'com.android.tools.build:gradle:4.1.2'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.21"
     }
 }
 
 plugins {
-    id 'com.github.ben-manes.versions' version '0.17.0'
+    id 'com.github.ben-manes.versions' version '0.36.0'
 }
 
 allprojects {

android/material-showcase/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Fri Aug 21 20:44:31 PDT 2020
+#Sun Jan 31 23:07:35 PST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.1-all.zip