CI: Kotlin: Label Kotlin test changes as "Kotlin"

Author: igfoo

.github/labeler.yml

@@ -20,7 +20,7 @@ JS:
 
 Kotlin:
  - java/kotlin-extractor/**/*
- - java/ql/test/kotlin/**/*
+ - java/ql/test-kotlin*/**/*
 
 Python:
  - python/**/*