Fix compilation error: use correct allowSlowOperations syntax

Use allowSlowOperations(String).use { } pattern instead of
incorrect generic type syntax.

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Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: meanmail

intellij-plugin/hs-core/src/org/hyperskill/academy/learning/newproject/coursesStorage/CoursesStorageBase.kt

@@ -26,7 +26,7 @@ open class CoursesStorageBase : SimplePersistentStateComponent<UserCoursesState>
   fun hasCourse(course: Course): Boolean {
     val courseMetaInfo = getCourseMetaInfo(course) ?: return false
     // Allow slow VFS operations when checking if course location is valid
-    return SlowOperations.allowSlowOperations<Boolean> {
+    return SlowOperations.allowSlowOperations("Checking course location validity").use {
       courseMetaInfo.isLocationValid
     }
   }