{Codeowner} Update codeowner (#18067)

* add codeowner

* codeowner

.github/CODEOWNERS

@@ -11,7 +11,7 @@
 /scripts/ @fengzhou-msft @jiasli
 /scripts/live_test @qwordy
 /src/azure-cli-testsdk/ @jsntcy @jiasli @kairu-ms @qwordy
-/src/azure-cli-core/ @jiasli @Juliehzl @fengzhou-msft @evelyn-ys @jsntcy @houk-ms
+/src/azure-cli-core/ @jiasli @Juliehzl @fengzhou-msft @evelyn-ys @jsntcy @houk-ms @kairu-ms
 /src/azure-cli-core/azure/cli/core/extension/ @msyyc @fengzhou-msft
 /src/azure-cli-core/azure/cli/core/_profile.py @jiasli @evelyn-ys
 /src/azure-cli-core/azure/cli/core/adal_authentication.py @jiasli @evelyn-ys