Add compute microversion 2.57 schema in servers_client
Compute microversion 2.57 adds 'user_data' in rebuild servers
APIs response.
This commit fill the schema gap for that.
Change-Id: I3472ea78f08b48a8c1bda23147275198a7cd3b0f
diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index 3bc1d0c..bf7b129 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -362,6 +362,10 @@
.. _2.55: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id49
+ * `2.57`_
+
+ .. _2.57: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id51
+
* `2.60`_
.. _2.60: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id54