[Gradle IT] Added configuration for running IT with k/n from master

[Gradle] Updated kotlin-build-gradle-plugin to 0.0.40

#KT-45978 Ready for Review


Merge-request: KT-MR-12509
Merged-by: Dmitrii Krasnov <Dmitrii.Krasnov@jetbrains.com>

kotlin-native/Interop/StubGenerator/build.gradle.kts

@@ -77,14 +77,4 @@ tasks {
         systemProperty("konan.home", project.project(":kotlin-native").projectDir)
         environment["LIBCLANG_DISABLE_CRASH_RECOVERY"] = "1"
     }
-}
-
-sourceSets {
-    "main" {
-        kotlin {
-            srcDir(project.kotlinNativeVersionSrc())
-            srcDir("../../shared/src/library/kotlin")
-            srcDir("../../shared/src/main/kotlin")
-        }
-    }
 }