Downgrade Kotlin ver

Author: KirillovProj

build.gradle

@@ -14,7 +14,7 @@ gradlePlugin {
 }
 
 group 'org.hyperskill'
-version '1.8.6'
+version '1.8.7'
 
 java {
     sourceCompatibility = JavaVersion.VERSION_17

src/main/java/org/hyperskill/plugin/versions/Kotlin.java

@@ -2,7 +2,7 @@
 
 public class Kotlin {
 
-    public String version = "2.3.0";
+    public String version = "2.1.0";
     public String javaVersion = "23";
 
     public Kotlin() {}