[Android] Fix issue where CODE_PUSH_APK_BUILD_TIME resource was not generating w/ AGP 4.2+ (microsoft#2337)

* Move resource value setter outside of evaluation closure

* Explicitly name build type in closure

Co-authored-by: Evgenii Utkin <evutkin@microsoft.com>

Author: Abbondanzo

android/codepush.gradle

@@ -17,13 +17,13 @@ void runBefore(String dependentTaskName, Task task) {
     }
 }
 
-gradle.projectsEvaluated {
-    android.buildTypes.each {
-        // to prevent incorrect long value restoration from strings.xml we need to wrap it with double quotes
-        // https://github.com/microsoft/cordova-plugin-code-push/issues/264
-        it.resValue 'string', "CODE_PUSH_APK_BUILD_TIME", String.format("\"%d\"", System.currentTimeMillis())
-    }
-    
+android.buildTypes.each { buildType ->
+    // to prevent incorrect long value restoration from strings.xml we need to wrap it with double quotes
+    // https://github.com/microsoft/cordova-plugin-code-push/issues/264
+    buildType.resValue 'string', "CODE_PUSH_APK_BUILD_TIME", String.format("\"%d\"", System.currentTimeMillis())
+}
+
+gradle.projectsEvaluated { 
     android.applicationVariants.all { variant ->
         def nodeModulesPath;
         if (config.root) {