- Update User-Agent header in RestSession

Update requirements:
- python = "^3.8"
- requests = "^2.32.0"
- readthedocs-sphinx-search = "^0.3.2" ### Fixed
Fix function names in 2.3.7.6 user_and_roles
- From add_role_ap_i to add_role_api
- From get_a_a_a_attribute_ap_i to get_aaa_attribute_api
- From get_permissions_ap_i to get_permissions_api
- From delete_role_ap_i to delete_role_api
- From get_roles_ap_i to get_roles_api
- From get_users_ap_i to get_users_api
- From add_user_ap_i to add_user_api
- From update_user_ap_i to update_user_api
- From delete_user_ap_i to delete_user_api
- From get_external_authentication_setting_ap_i to get_external_authentication_setting_api
- From manage_external_authentication_setting_ap_i to manage_external_authentication_setting_api
- From get_external_authentication_servers_ap_i to get_external_authentication_servers_api
- From add_and_update_a_a_a_attribute_ap_i to add_and_update_aaa_attribute_api
- From delete_a_a_a_attribute_ap_i to delete_aaa_attribute_api
- From get_a_a_a_attribute_ap_i to get_aaa_attribute_api

cisco-en-programmability / dnacentersdk