move spec to correct location

Author: SamSaffron

ai_artifact_key_value_api_spec.rb renamed to spec/system/ai_artifact_key_value_api_spec.rb

@@ -53,8 +53,8 @@
     visit "/discourse-ai/ai-bot/artifacts/#{artifact.id}"
 
     within_frame(find("iframe")) do
-      expect(page).to have_selector("#log", wait: 10)
-      expect(page).to have_selector("#log[data-test-complete='true']", wait: 15)
+      expect(page).to have_selector("#log", wait: 2)
+      expect(page).to have_selector("#log[data-test-complete='true']", wait: 2)
       expect(page).to have_no_selector("#log[data-test-error]")
     end