chore(release): release v1.6.0

Author: raphkim

gradle.properties

@@ -13,8 +13,8 @@ org.gradle.jvmargs=-Xmx4g
 org.gradle.parallel=true
 
 GROUP=com.amplifyframework
-VERSION_NAME=main
-VERSION_CODE=1
+VERSION_NAME=1.6.0
+VERSION_CODE=010600
 
 POM_URL=https://github.com/aws-amplify/amplify-android
 POM_SCM_URL=https://github.com/aws-amplify/amplify-android
@@ -32,4 +32,3 @@ POM_DEVELOPER_ORGANIZATION_URL=http://aws.amazon.com
 
 android.useAndroidX=true
 android.enableJetifier=true
-