Kotlin: Update CODEOWNERS

Author: igfoo

CODEOWNERS

@@ -8,7 +8,7 @@
 /swift/ @github/codeql-swift
 /misc/codegen/ @github/codeql-swift
 /java/kotlin-extractor/ @github/codeql-kotlin
-/java/ql/test/kotlin/ @github/codeql-kotlin
+/java/ql/test-kotlin1/ @github/codeql-kotlin
 /java/ql/test-kotlin2/ @github/codeql-kotlin
 
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