docs: fix sites.list_auth_configurations method name

Rename list_authentication_configurations to list_auth_configurations
to match the actual method name in the endpoint.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jorwoods

docs/api-ref.md

@@ -3903,7 +3903,7 @@ Source file: models/site_item.py
 
 ### SiteAuthConfiguration class
 
-The `SiteAuthConfiguration` class contains the attributes for the authentication configuration on Tableau Cloud. This class represents the authentication configuration information returned when using the `sites.list_authentication_configurations` method.
+The `SiteAuthConfiguration` class contains the attributes for the authentication configuration on Tableau Cloud. This class represents the authentication configuration information returned when using the `sites.list_auth_configurations` method.
 
 **Attributes**
 
@@ -3923,7 +3923,7 @@ Attribute | Description
 # sign in, etc.
 
 # Get authentication configurations for the current site
-auth_configs = server.sites.list_authentication_configurations()
+auth_configs = server.sites.list_auth_configurations()
 
 # Display configuration details
 for config in auth_configs:
@@ -4230,15 +4230,15 @@ server.sites.delete('9a8b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d')
 <br>
 <br>
 
-#### sites.list_authentication_configurations
+#### sites.list_auth_configurations
 
 ```py
-sites.list_authentication_configurations()
+sites.list_auth_configurations()
 ```
 
 Lists the authentication configurations for the current site.
 
-REST API: [List Authentication Configurations for the current Site](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_site.htm#list_authentication_configurations_site)
+REST API: [List Authentication Configurations for the current Site](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_site.htm#list_auth_configurations_site)
 
 **Returns**
 
@@ -4251,7 +4251,7 @@ Returns a list of authentication configurations for the current site.
 # server = TSC.Server('https://MY-SERVER')
 # sign in, etc.
 
-auth_configs = server.sites.list_authentication_configurations()
+auth_configs = server.sites.list_auth_configurations()
 for config in auth_configs:
     print(f"IDP Configuration ID: {config.idp_configuration_id}")
     print(f"Name: {config.idp_configuration_name}")
@@ -4950,7 +4950,7 @@ Name | Description
 `name` |   The name of the user. This attribute is required when you are creating a `UserItem` instance.
 `site_role` |  The role the user has on the site. This attribute is required if you are creating a `UserItem` instance. See *User Roles* below for details.
 `groups` | The groups that the user belongs to. You must run the populate_groups method to add the groups to the `UserItem`.
-`idp_configuration_id` | Tableau Cloud only. The authentication method for the user. To find the idp_configuration_id value, use sites.list_authentication_configurations method. **Important: Use idp_configuration_id or auth_setting, but not both.**
+`idp_configuration_id` | Tableau Cloud only. The authentication method for the user. To find the idp_configuration_id value, use sites.list_auth_configurations method. **Important: Use idp_configuration_id or auth_setting, but not both.**
 
 
 **User Auth**