upgrade kotlin to 2.0.0, gradle 8.8

bbootimg/build.gradle.kts

@@ -15,7 +15,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.9.22"
+    kotlin("jvm") version "2.0.0"
     application
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-rc-3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

helper/build.gradle.kts

@@ -15,7 +15,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.9.22"
+    kotlin("jvm") version "2.0.0"
     `java-library`
     application
 }

lazybox/build.gradle.kts

@@ -8,7 +8,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-    kotlin("jvm") version "1.9.22"
+    kotlin("jvm") version "2.0.0"
     application
 }