[Timeline] Events request end tracking (#191289)

## Summary

Bring APM `endTracking` calls back in the timeline events request, since
they were accidentally removed
[here](f1dc15a#diff-982a0a7f37bfa4c40cc92dc21648118bb152723ad895d932da368341ddea1628L263)

x-pack/plugins/security_solution/public/common/components/events_viewer/use_timelines_events.tsx

@@ -126,7 +126,7 @@ const useApmTracking = (tableId: string) => {
     // The blocking span needs to be ended manually when the batched request finishes.
     const span = transaction?.startSpan('batched search', 'http-request', { blocking: true });
     return {
-      endTracking: (result: 'success' | 'error' | 'aborted' | 'invalid') => {
+      endTracking: (result: 'success' | 'error' | 'aborted') => {
         transaction?.addLabels({ result });
         span?.end();
       },
@@ -230,7 +230,7 @@ export const useTimelineEventsHandler = ({
         abortCtrl.current = new AbortController();
         setLoading(true);
         if (data && data.search) {
-          startTracking();
+          const { endTracking } = startTracking();
           const abortSignal = abortCtrl.current.signal;
           searchSubscription$.current = data.search
             .search<TimelineRequest, TimelineResponse<typeof language>>(
@@ -249,6 +249,7 @@ export const useTimelineEventsHandler = ({
               next: (response) => {
                 if (!isRunningResponse(response)) {
                   setTimelineResponse((prevResponse) => {
+                    endTracking('success');
                     const newTimelineResponse = {
                       ...prevResponse,
                       consumers: response.consumers,
@@ -271,6 +272,7 @@ export const useTimelineEventsHandler = ({
                 }
               },
               error: (msg) => {
+                endTracking(abortSignal.aborted ? 'aborted' : 'error');
                 setLoading(false);
                 data.search.showError(msg);
                 searchSubscription$.current.unsubscribe();