Updating release date for azservicebus (Azure#20513)

Author: richardpark-msft

sdk/messaging/azservicebus/CHANGELOG.md

@@ -1,19 +1,15 @@
 # Release History
 
-## 1.2.2 (Unreleased)
+## 1.2.2 (2023-04-11)
 
 ### Features Added
 
 - Authentication errors are indicated with an `azservicebus.Error`, with a `Code` of `azservicebus.CodeUnauthorizedAccess`. (PR#20447)
 
-### Breaking Changes
-
 ### Bugs Fixed
 
 - Authentication errors could cause unnecessary retries, making calls taking longer to fail. (PR#20447)
 
-### Other Changes
-
 ## 1.2.1 (2023-03-07)
 
 ### Bugs Fixed