Use database-supports? instead of hard-coded driver in `dataset-with-custom-pk-test` (#42224)

test/metabase/test/data/dataset_definition_test.clj

@@ -34,7 +34,7 @@
                    :fk_target_field_id nil
                    :semantic_type      :type/PK}]
                  user-fields)))
-        (when-not (#{:sqlite} driver/*driver*) ;; our implement does not support adding fk for custom dataset yet
+        (when (driver/database-supports? driver/*driver* :foreign-keys (mt/db))
           (testing "user_custom_id is a FK non user.custom_id"
             (is (= #{{:name               (format-name "user_custom_id")
                       :fk_target_field_id (mt/id :user :custom_id)