[Security Solution] Re-adds a test that was skipped (#100273)

## Summary

Re-adds a test that was skipped. If it goes bonkers again, I will add more debugging information to it. I will keep an eye on the operations channel to see when/if this fails again. Originally this looked to be timeouts waiting, so I increased the global timeout to be 20 seconds instead of the original 10 seconds.

Resolves:
#89389

### Checklist

- [x] [Unit or functional tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html) were updated or added to match the most common scenarios

x-pack/test/detection_engine_api_integration/security_and_spaces/tests/exception_operators_data_types/ip.ts

@@ -626,8 +626,7 @@ export default ({ getService }: FtrProviderContext) => {
         expect(ips).to.eql(['127.0.0.1', '127.0.0.3']);
       });
 
-      // flaky https://github.com/elastic/kibana/issues/89389
-      it.skip('will return 4 results if we have a list that excludes all ips', async () => {
+      it('will return 4 results if we have a list that excludes all ips', async () => {
         await importFile(
           supertest,
           'ip',

x-pack/test/detection_engine_api_integration/utils.ts

@@ -721,7 +721,7 @@ export const getSimpleRuleOutputWithWebHookAction = (actionId: string): Partial<
 export const waitFor = async (
   functionToTest: () => Promise<boolean>,
   functionName: string,
-  maxTimeout: number = 10000,
+  maxTimeout: number = 20000,
   timeoutWait: number = 10
 ): Promise<void> => {
   await new Promise<void>(async (resolve, reject) => {