fix tests

Author: Yogesh Gaikwad

x-pack/docs/en/rest-api/security/get-builtin-privileges.asciidoc

@@ -75,6 +75,7 @@ A successful call returns an object with "cluster" and "index" fields.
     "manage_ingest_pipelines",
     "manage_ml",
     "manage_oidc",
+    "manage_own_api_key",
     "manage_pipeline",
     "manage_rollup",
     "manage_saml",

x-pack/plugin/src/test/resources/rest-api-spec/test/privileges/11_builtin.yml

@@ -15,5 +15,5 @@ setup:
   # This is fragile - it needs to be updated every time we add a new cluster/index privilege
   # I would much prefer we could just check that specific entries are in the array, but we don't have
   # an assertion for that
-  - length: { "cluster" : 28 }
+  - length: { "cluster" : 29 }
   - length: { "index" : 16 }