[ResponseOps][Alerting] Flaky test x-pack/test/alerting_api_integrati…

…on/security_and_spaces/group2/tests/telemetry/index·ts (elastic#159818)

Resolves elastic#136153

## Summary

Removes skip on the `Group 2 Alerting and Actions Telemetry "after all"
hook in "Alerting and Actions Telemetry"` test.

1. Flaky test run 250x -
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/2386
2. Flaky test run 250x -
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/2418
( a test failed but it's from `Group 2 Alerts alerts
getGlobalExecutionKpi should return KPI from all spaces in the
namespaces param` )
3. Flaky test run 250x -
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/2424

(cherry picked from commit e2a6a33)

x-pack/test/alerting_api_integration/security_and_spaces/group2/tests/telemetry/index.ts

@@ -11,8 +11,7 @@ import { setupSpacesAndUsers, tearDown } from '../../../setup';
 // eslint-disable-next-line import/no-default-export
 export default function telemetryTests({ loadTestFile, getService }: FtrProviderContext) {
   const esArchiver = getService('esArchiver');
-  // FLAKY: https://github.com/elastic/kibana/issues/136153
-  describe.skip('Alerting and Actions Telemetry', () => {
+  describe('Alerting and Actions Telemetry', () => {
     before(async () => {
       await esArchiver.load('x-pack/test/functional/es_archives/event_log_telemetry');
       // reset the state in the telemetry task