[Cosmos] consider batch as write op (Azure#38365)

* consider batch as write op

* Update CHANGELOG.md

Author: simorenoh

sdk/cosmos/azure-cosmos/CHANGELOG.md

@@ -24,6 +24,7 @@ For more information on this, see our README section [here](https://github.com/A
 * Added retry handling logic for DatabaseAccountNotFound exceptions. See [PR 36514](https://github.com/Azure/azure-sdk-for-python/pull/36514).
 * Fixed SDK regex validation that would not allow for item ids to be longer than 255 characters. See [PR 36569](https://github.com/Azure/azure-sdk-for-python/pull/36569).
 * Fixed issue where 'NoneType' object has no attribute error was raised when a session retry happened during a query. See [PR 37578](https://github.com/Azure/azure-sdk-for-python/pull/37578).
+* Batch requests will now be properly considered as Write operation. See [PR 38365](https://github.com/Azure/azure-sdk-for-python/pull/38365).
 
 #### Other Changes
 * Getting offer thoughput when it has not been defined in a container will now give a 404/10004 instead of just a 404. See [PR 36043](https://github.com/Azure/azure-sdk-for-python/pull/36043)

sdk/cosmos/azure-cosmos/azure/cosmos/documents.py

@@ -373,6 +373,7 @@ def IsWriteOperation(operationType: str) -> bool:
             _OperationType.Replace,
             _OperationType.Upsert,
             _OperationType.Update,
+            _OperationType.Batch
         )
 
     @staticmethod