chore: add ianhou to mergify config (#4740)

Onboarding new engineer.
---

By submitting this pull request, I confirm that my contribution is made under the terms of the [Apache 2.0 license].

[Apache 2.0 license]: https://www.apache.org/licenses/LICENSE-2.0

.mergify/config.yml

@@ -26,7 +26,7 @@ pull_request_rules:
       label:
         add: [contribution/core]
     conditions:
-      - author~=^(RomainMuller|rix0rrr|iliapolo|comcalvi|kaizencc|corymhall|otaviomacedo|TheRealAmazonKendra|vinayak-kukreja|mrgrain|colifran|mikewrighton|paulhcsun)$
+      - author~=^(rix0rrr|iliapolo|kaizencc|otaviomacedo|mrgrain|paulhcsun|iankhou|HBobertz|sumupitchayan|jiayiwang7)$
       - -label~="contribution/core"
   - name: Tell them we're good now
     actions: