chore(suspect-spans): Give code ownership to performance team (#29523)

.github/CODEOWNERS

@@ -126,7 +126,7 @@ build-utils/        @getsentry/owners-js-build
 
 ### Performance ###
 /src/sentry/api/endpoints/organization_events_facets_performance.py         @getsentry/performance
-
+/src/sentry/api/endpoints/organization_events_spans_performance.py          @getsentry/performance
 /src/sentry/api/endpoints/organization_events_trace.py          @getsentry/performance
 /src/sentry/api/endpoints/organization_events_trends.py         @getsentry/performance
 /src/sentry/api/endpoints/organization_events_vitals.py         @getsentry/performance