Add fields in hypervisor schema for 2.33 and 2.53

1. For microversion 2.33
   hypervisor_links is added to the response body for the following APIs:
     - GET /os-hypervisors
     - GET /os-hypervisors/detail

2. For microversion 2.53
   servers is added to the response body for the following APIs:
     - GET /os-hypervisor
     - GET /os-hypervisors
     - GET /os-hypervisors/detail

This is to fix the hypervisor schema for microversion 2.33 and 2.53.

Partially Implements: blueprint fix-microversion-gap

Co-authored-by: Ghanshyam Mann <gmann@ghanshyammann.com>

Change-Id: Ifeb26a50b604d257e9ab00cceed7cd2f34621419
diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index 0b80b72..2529c9e 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -350,6 +350,10 @@
 
   .. _2.32: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id29
 
+  * `2.33`_
+
+  .. _2.33: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id30
+
   * `2.36`_
 
   .. _2.36: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#microversion