Update org.jetbrains.kotlin to v2.1.0 (#72)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

compile-kotlin-test/build.gradle.kts

@@ -14,8 +14,8 @@ buildscript {
 plugins {
     id("java")
     id("org.domaframework.doma.compile")
-    id("org.jetbrains.kotlin.jvm") version "2.0.21"
-    id("org.jetbrains.kotlin.kapt") version "2.0.21"
+    id("org.jetbrains.kotlin.jvm") version "2.1.0"
+    id("org.jetbrains.kotlin.kapt") version "2.1.0"
 }
 
 val domaVersion = "3.1.0"

compile-mix-test/build.gradle.kts

@@ -14,8 +14,8 @@ buildscript {
 plugins {
     id("java")
     id("org.domaframework.doma.compile")
-    id("org.jetbrains.kotlin.jvm") version "2.0.21"
-    id("org.jetbrains.kotlin.kapt") version "2.0.21"
+    id("org.jetbrains.kotlin.jvm") version "2.1.0"
+    id("org.jetbrains.kotlin.kapt") version "2.1.0"
 }
 
 val domaVersion = "3.1.0"