Merge pull request #49143 from mengqiy/updateCliOwners

Automatic merge from submit-queue (batch tested with PRs 49143, 49211)

update cli owner

Update my GH handle from @ymqytw to @mengqiy
And remove @pwittrock from reviewer list, but he is still in the approver list.

/assign @pwittrock 

```release-note
NONE
```

OWNERS_ALIASES

@@ -30,12 +30,11 @@ aliases:
     - ericchiang
     - fabianofranz
     - ghodss
-    - pwittrock
+    - mengqiy
     - rootfs
     - smarterclayton
     - soltysh
     - sttts
-    - ymqytw
   test-infra-maintainers:
     - fejta
     - ixdy