[ServiceBus] remove msrest

sdk/servicebus/azure-servicebus/CHANGELOG.md

@@ -6,10 +6,16 @@
 
 ### Breaking Changes
 
+- Client side validation of input is now disabled by default. This means there will be no `msrest.exceptions.ValidationError` raised by the client SDK in the case of malformed input. An `azure.core.exceptions.HttpResponseError` may now be raised if the server refuses the request.
+
 ### Bugs Fixed
 
 ### Other Changes
 
+- Updated minimum `azure-core` version to 1.24.0.
+- Removed `msrest` dependency.
+- Removed `azure-common` dependency.
+
 ## 7.8.3 (2023-03-09)
 
 ### Bugs Fixed

sdk/servicebus/azure-servicebus/assets.json

@@ -2,5 +2,5 @@
   "AssetsRepo": "Azure/azure-sdk-assets",
   "AssetsRepoPrefixPath": "python",
   "TagPrefix": "python/servicebus/azure-servicebus",
-  "Tag": "python/servicebus/azure-servicebus_361137d481"
+  "Tag": "python/servicebus/azure-servicebus_f69b8e6a3c"
 }

sdk/servicebus/azure-servicebus/azure/servicebus/_common/utils.py

@@ -24,7 +24,7 @@
     cast
 )
 from contextlib import contextmanager
-from msrest.serialization import TZ_UTC
+from datetime import timezone
 
 try:
     from urlparse import urlparse
@@ -81,11 +81,11 @@
 
 
 def utc_from_timestamp(timestamp):
-    return datetime.datetime.fromtimestamp(timestamp, tz=TZ_UTC)
+    return datetime.datetime.fromtimestamp(timestamp, tz=timezone.utc)
 
 
 def utc_now():
-    return datetime.datetime.now(TZ_UTC)
+    return datetime.datetime.now(timezone.utc)
 
 
 def build_uri(address, entity):