[SIEM][Detection Engine] Fixes skipped tests (#71347)

## Summary

* https://github.com/elastic/kibana/issues/69632
* Adds a retry loop in case of a network outage/issue which should increase the chances of success
* If there is still an issue after the 20th try, then it moves on and there is a high likelihood the tests will continue without issues.
* Adds console logging statements so we know if this flakiness happens again a bit more insight into why the network is behaving the way it is.
* Helps prevent the other tests from being skipped in the future due to bad networking issues. 

The errors that were coming back from the failed tests are in the `afterEach` and look to be network related or another test interfering:

```ts
1) detection engine api security and spaces enabled
01:59:54         find_statuses
01:59:54           "after each" hook for "should return a single rule status when a single rule is loaded from a find status with defaults added":
01:59:54       ResponseError: Response Error
01:59:54        at IncomingMessage.response.on (/dev/shm/workspace/kibana/node_modules/@elastic/elasticsearch/lib/Transport.js:287:25)
01:59:54        at endReadableNT (_stream_readable.js:1145:12)
01:59:54        at process._tickCallback (internal/process/next_tick.js:63:19)
01:59:54  
01:59:54               └- ✖ fail: "detection engine api security and spaces enabled find_statuses "after each" hook for "should return a single rule status when a single rule is loaded from a find status with defaults added""
01:59:54               │
01:59:54               └-> "after all" hook
01:59:54             └-> "after all" hook
01:59:54         │
01:59:54         │42 passing (2.0m)
01:59:54         │1 failing
```

So this should fix it to where the afterEach calls try up to 20 times before giving up and then on giving up they move on with the hope a different test doesn't fail.


### Checklist
- [x] [Unit or functional tests](https://github.com/elastic/kibana/blob/master/CONTRIBUTING.md#cross-browser-compatibility) were updated or added to match the most common scenarios

x-pack/test/detection_engine_api_integration/basic/tests/find_statuses.ts

@@ -22,8 +22,7 @@ export default ({ getService }: FtrProviderContext): void => {
   const supertest = getService('supertest');
   const es = getService('es');
 
-  // FLAKY: https://github.com/elastic/kibana/issues/69632
+  describe('find_statuses', () => {
-  describe.skip('find_statuses', () => {
     beforeEach(async () => {
       await createSignalsIndex(supertest);
     });

x-pack/test/detection_engine_api_integration/utils.ts

@@ -235,9 +235,12 @@ export const getSimpleMlRuleOutput = (ruleId = 'rule-1'): Partial<RulesSchema> =
 
 /**
  * Remove all alerts from the .kibana index
+ * This will retry 20 times before giving up and hopefully still not interfere with other tests
  * @param es The ElasticSearch handle
  */
-export const deleteAllAlerts = async (es: Client): Promise<void> => {
+export const deleteAllAlerts = async (es: Client, retryCount = 20): Promise<void> => {
+  if (retryCount > 0) {
+    try {
       await es.deleteByQuery({
         index: '.kibana',
         q: 'type:alert',
@@ -245,13 +248,25 @@ export const deleteAllAlerts = async (es: Client): Promise<void> => {
         refresh: true,
         body: {},
       });
+    } catch (err) {
+      // eslint-disable-next-line no-console
+      console.log(`Failure trying to deleteAllAlerts, retries left are: ${retryCount - 1}`, err);
+      await deleteAllAlerts(es, retryCount - 1);
+    }
+  } else {
+    // eslint-disable-next-line no-console
+    console.log('Could not deleteAllAlerts, no retries are left');
+  }
 };
 
 /**
  * Remove all rules statuses from the .kibana index
+ * This will retry 20 times before giving up and hopefully still not interfere with other tests
  * @param es The ElasticSearch handle
  */
-export const deleteAllRulesStatuses = async (es: Client): Promise<void> => {
+export const deleteAllRulesStatuses = async (es: Client, retryCount = 20): Promise<void> => {
+  if (retryCount > 0) {
+    try {
       await es.deleteByQuery({
         index: '.kibana',
         q: 'type:siem-detection-engine-rule-status',
@@ -259,16 +274,44 @@ export const deleteAllRulesStatuses = async (es: Client): Promise<void> => {
         refresh: true,
         body: {},
       });
+    } catch (err) {
+      // eslint-disable-next-line no-console
+      console.log(
+        `Failure trying to deleteAllRulesStatuses, retries left are: ${retryCount - 1}`,
+        err
+      );
+      await deleteAllRulesStatuses(es, retryCount - 1);
+    }
+  } else {
+    // eslint-disable-next-line no-console
+    console.log('Could not deleteAllRulesStatuses, no retries are left');
+  }
 };
 
 /**
  * Creates the signals index for use inside of beforeEach blocks of tests
+ * This will retry 20 times before giving up and hopefully still not interfere with other tests
  * @param supertest The supertest client library
  */
 export const createSignalsIndex = async (
-  supertest: SuperTest<supertestAsPromised.Test>
+  supertest: SuperTest<supertestAsPromised.Test>,
+  retryCount = 20
 ): Promise<void> => {
-  await supertest.post(DETECTION_ENGINE_INDEX_URL).set('kbn-xsrf', 'true').send().expect(200);
+  if (retryCount > 0) {
+    try {
+      await supertest.post(DETECTION_ENGINE_INDEX_URL).set('kbn-xsrf', 'true').send();
+    } catch (err) {
+      // eslint-disable-next-line no-console
+      console.log(
+        `Failure trying to create the signals index, retries left are: ${retryCount - 1}`,
+        err
+      );
+      await createSignalsIndex(supertest, retryCount - 1);
+    }
+  } else {
+    // eslint-disable-next-line no-console
+    console.log('Could not createSignalsIndex, no retries are left');
+  }
 };
 
 /**
@@ -276,9 +319,21 @@ export const createSignalsIndex = async (
  * @param supertest The supertest client library
  */
 export const deleteSignalsIndex = async (
-  supertest: SuperTest<supertestAsPromised.Test>
+  supertest: SuperTest<supertestAsPromised.Test>,
+  retryCount = 20
 ): Promise<void> => {
-  await supertest.delete(DETECTION_ENGINE_INDEX_URL).set('kbn-xsrf', 'true').send().expect(200);
+  if (retryCount > 0) {
+    try {
+      await supertest.delete(DETECTION_ENGINE_INDEX_URL).set('kbn-xsrf', 'true').send();
+    } catch (err) {
+      // eslint-disable-next-line no-console
+      console.log(`Failure trying to deleteSignalsIndex, retries left are: ${retryCount - 1}`, err);
+      await deleteSignalsIndex(supertest, retryCount - 1);
+    }
+  } else {
+    // eslint-disable-next-line no-console
+    console.log('Could not deleteSignalsIndex, no retries are left');
+  }
 };
 
 /**