[FTR] Skipped Attack Discovery Schedules Tests for FIPS (elastic#229125)

## Summary

We intentionally need to skip this test for FIPS due to [FIPS
overrides](https://github.com/elastic/kibana/blob/542a56b4829643d05c47bcc47485dd9baaacea32/packages/kbn-test/src/functional_tests/lib/fips_overrides.ts).

Added `skipFIPS` tag


### 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

Author: elena-shostak

x-pack/test/security_solution_api_integration/test_suites/genai/attack_discovery/schedules/basic_license_essentials_tier/index.ts

@@ -9,6 +9,7 @@ import { FtrProviderContext } from '../../../../../ftr_provider_context';
 
 export default function ({ loadTestFile }: FtrProviderContext) {
   describe('GenAI - Attack Discovery Schedules APIs', function () {
+    this.tags('skipFIPS');
     loadTestFile(require.resolve('./common.ess.ts'));
   });
 }