Use Kotlin extension function to retrieve service

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Dependencies - upgrade `org.jetbrains.intellij` to `0.6.1`
 - GitHub Actions - `gradleValidation` update to `gradle/wrapper-validation-action@v1.0.3`
 - GitHub Actions - `releaseDraft` update to `actions/download-artifact@v2`
+- Use [Kotlin extension function](https://jetbrains.org/intellij/sdk/docs/basics/plugin_structure/plugin_services.html?search=servic#retrieving-a-service) to retrieve the `MyProjectService` in the `MyProjectManagerListener`
 
 ### Removed
 - Remove Third-party IntelliJ Plugin Verifier GitHub Action

src/main/kotlin/org/jetbrains/plugins/template/listeners/MyProjectManagerListener.kt

@@ -1,5 +1,6 @@
 package org.jetbrains.plugins.template.listeners
 
+import com.intellij.openapi.components.service
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.project.ProjectManagerListener
 import org.jetbrains.plugins.template.services.MyProjectService
@@ -7,6 +8,6 @@ import org.jetbrains.plugins.template.services.MyProjectService
 internal class MyProjectManagerListener : ProjectManagerListener {
 
     override fun projectOpened(project: Project) {
-        project.getService(MyProjectService::class.java)
+        project.service<MyProjectService>()
     }
 }