Update codeowners file for js (#4475)

.github/CODEOWNERS

@@ -9,17 +9,17 @@
 /sdk/ @ramya-rao-a
 
 # Core
-/sdk/core/abort-controller/ @daviwil
-/sdk/core/core-amqp/ @ramya-rao-a
+/sdk/core/abort-controller/ @chradek
+/sdk/core/core-amqp/ @ramya-rao-a @chradek @shivangireja
 /sdk/core/core-auth/ @daviwil
 /sdk/core/core-http/ @daviwil
 /sdk/core/core-paging/ @daviwil
 
 # Service teams
-/sdk/eventhub/ @chradek @shivangireja
-/sdk/servicebus/ @ramya-rao-a @shivangireja
+/sdk/eventhub/ @ramya-rao-a @chradek @shivangireja
+/sdk/servicebus/ @ramya-rao-a @chradek @shivangireja
 
-/sdk/identity/ @daviwil
+/sdk/identity/ @daviwil @jonathandturner
 /sdk/keyvault/ @jonathandturner @sadasant
 /sdk/storage/ @XiaoningLiu @jeremymeng @HarshaNalluru @vinjiang @jiacfan