[ERD Workflows] Reenable endpoint exceptions FTR (#174841)

## Summary

closes:
- #173685
- #173684
- #173184
- #173441

flaky runner:
- 10x ESS + 10x serverless:
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4865
💯 ✅
- 100x ESS +100x serverless:
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4869
💯 ✅

> [!caution]
> don't forget to revert the `temp` commit ✅

---------

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

x-pack/test/security_solution_endpoint/apps/integrations/endpoint_exceptions.ts

@@ -28,8 +28,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
   const unzipPromisify = promisify(unzip);
   const comboBox = getService('comboBox');
 
-  // FLAKY: https://github.com/elastic/kibana/issues/173184
-  describe.skip('Endpoint Exceptions', function () {
+  describe('Endpoint Exceptions', function () {
     targetTags(this, ['@ess', '@serverless']);
 
     this.timeout(10 * 60_000);