[Security Solution] Skip flaky test due to package change (#163892)

## Summary

Skipping this test as it is broken, currently.

Skip ticket: https://github.com/elastic/kibana/issues/160274


### 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

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

x-pack/test/security_solution_endpoint_api_int/apis/metadata.ts

@@ -394,7 +394,8 @@ export default function ({ getService }: FtrProviderContext) {
       });
     });
 
-    describe('get metadata transforms', () => {
+    // FLAKY: https://github.com/elastic/kibana/issues/160274
+    describe.skip('get metadata transforms', () => {
       const testRegex = /endpoint\.metadata_(united|current)-default-*/;
 
       it('should respond forbidden if no fleet access', async () => {