[EDR Workflows][8.12] Reenable artifact entries list FTR (#174294)

## Summary


Locally the tests passed both for serverless and ESS, but on CI,
serverless tests are [disabled
anyway](https://github.com/gergoabraham/kibana/blob/8-12-defend-workflows-reenable-artifact-entries-list-ftr/.buildkite/ftr_configs.yml#L97)
on this branch, so I just enabled the tests for both envs.

- 10x
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4753
10/10 ✅
- 100x
https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/4759
100/100 ✅

A separate PR will try to enable it on `main` since there is an
underlying issue there.

failing test issues:
- #173681
- #173682

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

@@ -51,21 +51,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
       .set('kbn-xsrf', 'true');
   };
 
-  // Several flaky tests from this file in serverless, hence @skipInServerless
-  // - https://github.com/elastic/kibana/issues?q=is%3Aissue+is%3Aopen+X-pack+endpoint+integrations++artifact+entries+list
-  // https://github.com/elastic/kibana/issues/171475
-  // https://github.com/elastic/kibana/issues/171476
-  // https://github.com/elastic/kibana/issues/171477
-  // https://github.com/elastic/kibana/issues/171478
-  // https://github.com/elastic/kibana/issues/171487
-  // https://github.com/elastic/kibana/issues/171488
-  // https://github.com/elastic/kibana/issues/171489
-  // https://github.com/elastic/kibana/issues/171491
-  // https://github.com/elastic/kibana/issues/171492
-  //
-  // FLAKY: https://github.com/elastic/kibana/issues/173681
-  // FLAKY: https://github.com/elastic/kibana/issues/173682
-  describe.skip('For each artifact list under management', function () {
+  describe('For each artifact list under management', function () {
     targetTags(this, ['@ess', '@serverless']);
 
     this.timeout(60_000 * 5);
@@ -228,9 +214,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
     };
 
     for (const testData of getArtifactsListTestsData()) {
-      // FLAKY: https://github.com/elastic/kibana/issues/171489
-      // FLAKY: https://github.com/elastic/kibana/issues/171475
-      describe.skip(`When on the ${testData.title} entries list`, function () {
+      describe(`When on the ${testData.title} entries list`, function () {
         beforeEach(async () => {
           policyInfo = await policyTestResources.createPolicy();
           await removeAllArtifacts();
@@ -316,8 +300,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
       });
     }
 
-    // FLAKY: https://github.com/elastic/kibana/issues/171476
-    describe.skip('Should check artifacts are correctly generated when multiple entries', function () {
+    describe('Should check artifacts are correctly generated when multiple entries', function () {
       let firstPolicy: PolicyTestResourceInfo;
       let secondPolicy: PolicyTestResourceInfo;