[For Community branch only] Use kotlin version 1.9.20-dev to simplify local build

Author: woainikk

gradle.properties

@@ -1,10 +1,12 @@
 # Kotlin
 version=1.8.1-Beta-SNAPSHOT
 group=org.jetbrains.kotlinx
+#to run locally add -Pkotlin_repo_url=https://maven.pkg.jetbrains.space/kotlin/p/kotlin/dev
 kotlin_version=1.9.21
 # DO NOT rename this property without adapting kotlinx.train build chain:
 atomicfu_version=0.23.1
 
+
 # Dependencies
 junit_version=4.12
 junit5_version=5.7.0
@@ -49,4 +51,3 @@ kotlinx.atomicfu.enableJvmIrTransformation=true
 # When the flag below is set to `true`, AtomicFU cannot process
 # usages of `moveForward` in `ConcurrentLinkedList.kt` correctly.
 kotlinx.atomicfu.enableJsIrTransformation=false
-kotlinx.atomicfu.enableNativeIrTransformation=true