Update CODEOWNERS for Azure AI Search (#42735)

Author: alzimmermsft

.github/CODEOWNERS

@@ -353,10 +353,10 @@
 
 # ServiceLabel: %Search
 # AzureSdkOwners: @xiangyan99
-# ServiceOwners:  @mattgotteiner
+# ServiceOwners:  @kuanlu95 @mattgotteiner
 
 # PRLabel: %Search
-/sdk/search/                                                         @xiangyan99 @Azure/azsdk-search
+/sdk/search/                                                         @Azure/azure-sdk-write-search @Azure/azsdk-search
 
 # PRLabel: %Service Fabric
 /sdk/servicefabric/                                                  @QingChenmsft @samedder