Failing ES Promotion: detection engine api security and spaces enabled deleting signals migrations rejects the request if the user does not have sufficient privileges

[spalger]

The 7.12 ES snapshot promotion is currently failing because of another ES security error message change that is validated in the tests:

1)    detection engine api security and spaces enabled
       
         deleting signals migrations
           rejects the request if the user does not have sufficient privileges:


       Error: expected { message: 'security_exception: action [indices:admin/settings/update] is unauthorized for user [t1_analyst], this action is granted by the index privileges [manage,all]',
   status_code: 403 } to sort of equal { message: 'security_exception: action [indices:admin/settings/update] is unauthorized for user [t1_analyst] on indices [], this action is granted by the index privileges [manage,all]',
   status_code: 403 }
       + expected - actual
 
        {
       -  "message": "security_exception: action [indices:admin/settings/update] is unauthorized for user [t1_analyst], this action is granted by the index privileges [manage,all]"
       +  "message": "security_exception: action [indices:admin/settings/update] is unauthorized for user [t1_analyst] on indices [], this action is granted by the index privileges [manage,all]"
          "status_code": 403
        }
       
       at Assertion.assert (/dev/shm/workspace/parallel/23/kibana/packages/kbn-expect/expect.js:100:11)
       at Assertion.eql (/dev/shm/workspace/parallel/23/kibana/packages/kbn-expect/expect.js:244:8)
       at Context.<anonymous> (test/detection_engine_api_integration/security_and_spaces/tests/delete_signals_migrations.ts:131:41)
       at Object.apply (/dev/shm/workspace/parallel/23/kibana/packages/kbn-test/src/functional_test_runner/lib/mocha/wrap_function.js:73:16)

7.12: badd0a7

[elasticmachine]

Pinging @elastic/security-solution (Team: SecuritySolution)

[elasticmachine]

Pinging @elastic/security-detections-response (Team:Detections and Resp)

[e40pud]

Fixed by #94391