Update compiler to latest dev version.

Workaround snapshot dependency problem
diff --git a/build.gradle b/build.gradle
index a5f9f51..73cd7ff 100644
--- a/build.gradle
+++ b/build.gradle
@@ -49,6 +49,14 @@
         gradlePluginPortal()
     }
 
+    configurations.classpath {
+        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
+            if (details.requested.group == 'org.jetbrains.kotlin') {
+                details.useVersion kotlin_version
+            }
+        }
+    }
+
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"