add code owners for transcription sdk (#48898)

Author: amber-yujueWang

.github/CODEOWNERS

@@ -466,11 +466,11 @@
 # ServiceLabel: %Service Bus %Track 1
 
 # PRLabel: %Speech Transcription
-/sdk/transcription/azure-ai-speech-transcription/                  @amber-yujueWang @Azure/azure-java-sdk @rhurey @xitzhang
+/sdk/transcription/azure-ai-speech-transcription/                  @amber-yujueWang @Azure/azure-java-sdk @rhurey @xitzhang @pankopon @emilyjiji
 
-# AzureSdkOwners:                                                  @amber-yujueWang @rhurey @xitzhang
+# AzureSdkOwners:                                                  @amber-yujueWang @rhurey @xitzhang @pankopon @emilyjiji
 # ServiceLabel: %Speech Transcription
-# ServiceOwners:                                                   @amber-yujueWang @rhurey @xitzhang
+# ServiceOwners:                                                   @amber-yujueWang @rhurey @xitzhang @pankopon @emilyjiji
 
 # PRLabel: %Storage
 /sdk/storage/                                                      @alzimmermsft @Azure/azure-java-sdk @browndav-msft @gunjansingh-msft @ibrandes @kyleknap @seanmcc-msft