Merge pull request #2373 from k8s-infra-cherrypick-robot/cherry-pick-2372-to-release-0.10

[release-0.10] 🌱 Update OWNERS_ALIASES

Author: k8s-ci-robot

OWNERS_ALIASES

@@ -20,7 +20,8 @@ aliases:
     - vincepri
   cluster-api-openstack-maintainers:
     - emilienm
-    - jichenjc
     - lentzi90
     - mdbooth
   cluster-api-openstack-reviewers:
+  cluster-api-openstack-emeritus-maintainers:
+    - jichenjc