[Cosmos] update versions for release (Azure#30435)

* update versions

* Update _version.py

* Update _timeout_failover_retry_policy.py

* Update _cosmos_client_connection.py

Author: simorenoh

sdk/cosmos/azure-cosmos/CHANGELOG.md

@@ -1,10 +1,6 @@
 ## Release History
 
-### 4.4.0b2 (Unreleased)
-
-#### Features Added
-
-#### Breaking Changes
+### 4.4.0b2 (2023-05-17)
 
 #### Bugs Fixed
 * Fixed bug with non english locales causing an error with the RFC 1123 Date Format. See [PR 30125](https://github.com/Azure/azure-sdk-for-python/pull/30125).
@@ -18,7 +14,6 @@
  - Added **preview** delete all items by partition key functionality. See [PR 29186](https://github.com/Azure/azure-sdk-for-python/pull/29186).
  - Added **preview** partial document update (Patch API) functionality and container methods for patching items with operations. See [PR 29497](https://github.com/Azure/azure-sdk-for-python/pull/29497). For more information on Patch, please see [Azure Cosmos DB Partial Document Update](https://learn.microsoft.com/azure/cosmos-db/partial-document-update).
 
-
 #### Bugs Fixed
 * Fixed bug in method `create_container_if_not_exists()` of async database client for unexpected kwargs being passed into `read()` method used internally. See [PR 29136](https://github.com/Azure/azure-sdk-for-python/pull/29136).
 * Fixed bug with method `query_items()` of our async container class, where partition key and cross partition headers would both be set when using partition keys. See [PR 29366](https://github.com/Azure/azure-sdk-for-python/pull/29366/).

sdk/cosmos/azure-cosmos/azure/cosmos/_cosmos_client_connection.py

@@ -160,7 +160,7 @@ def __init__(
                 retry_connect=self.connection_policy.ConnectionRetryConfiguration.connect,
                 retry_read=self.connection_policy.ConnectionRetryConfiguration.read,
                 retry_status=self.connection_policy.ConnectionRetryConfiguration.status,
-                retry_backoff_max=self.connection_policy.ConnectionRetryConfiguration.backoff_max,
+                retry_backoff_max=self.connection_policy.ConnectionRetryConfiguration.BACKOFF_MAX,
                 retry_on_status_codes=list(self.connection_policy.ConnectionRetryConfiguration.status_forcelist),
                 retry_backoff_factor=self.connection_policy.ConnectionRetryConfiguration.backoff_factor
             )

sdk/cosmos/azure-cosmos/azure/cosmos/_timeout_failover_retry_policy.py

@@ -37,7 +37,8 @@ def __init__(self, connection_policy, global_endpoint_manager, *args):
         self.failover_retry_count = 0
         self.connection_policy = connection_policy
         self.request = args[0] if args else None
-        self.location_endpoint = self.global_endpoint_manager.resolve_service_endpoint(self.request)
+        if self.request:
+            self.location_endpoint = self.global_endpoint_manager.resolve_service_endpoint(self.request)
 
     def needsRetry(self):
         if self.args: