[STUDIO-4580] Upgrade groovy v3.0.17 (#18)

* upgrade groovy 2.4.7 -> 3.0.17

---------

Co-authored-by: linhtnl <lamlinh20001@gmail.com>

README.md

@@ -2,6 +2,25 @@
 
 This Gradle plugin helps simplify/automate some tasks in Katalon Studio. It is published at https://plugins.gradle.org/plugin/com.katalon.gradle-plugin.
 
+## How to build and test
+* **Build**
+Run `gradle build`
+* **Test** 
+<br>Suggestion plugin: [katalon-studio-zip-keywords-plugin](https://github.com/katalon-studio/katalon-studio-zip-keywords-plugin)
+<br>Remove line `'com.katalon.gradle-plugin' version '<version>'`
+<br>Adding this script to the build.gradle file in the tested plugin.
+```
+buildscript{
+    dependencies{
+        classpath files('<path>/katalon-gradle-plugin-<version>.jar')
+    }
+}
+.....
+apply plugin: com.katalon.gradle.plugin.KatalonGradlePlugin
+``` 
+
+
+
 ## Gradle Tasks
 
 * `katalonCopyDependencies`

build.gradle

@@ -6,7 +6,7 @@ plugins {
 }
 
 group = 'com.katalon.gradle.plugin'
-version = '0.1.1'
+version = '0.1.2'
 
 publishing {
   repositories {

src/main/java/com/katalon/gradle/plugin/KatalonGradlePlugin.java

@@ -13,7 +13,7 @@ public class KatalonGradlePlugin implements Plugin<Project> {
     static final String RESOURCE_DIR = "Keywords";
     static final String METADATA_FILE = "katalon-plugin.json";
     static final String GROOVY_DEPENDENCY = "org.codehaus.groovy:groovy-all";
-    static final String GROOVY_VERSION = "2.4.7";
+    static final String GROOVY_VERSION = "3.0.17";
 
     private void applyPlugins(Project project) {
         project.getPlugins().apply(JavaPlugin.class);