Add additional repository

with dev versions of Kotlin. It was in build.gradle before, but was lost after KTS migration (5aa1032)

build.gradle.kts

@@ -55,6 +55,7 @@ allprojects {
     }
     repositories {
         mavenCentral()
+        maven("https://cache-redirector.jetbrains.com/maven.pkg.jetbrains.space/kotlin/p/kotlin/dev")
     }
 }