Revert "Revert "Removing OpenNebula code""

This reverts commit 37d0befd4a0e244c1fee3ea0ea68be23f89b7c1d.

Requested by TSC

Change-Id: I4c53c0fcb29acef1ee082acd28738296ea7e8a80
diff --git a/requirements.txt b/requirements.txt
index b35b300..f0c254d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -79,7 +79,7 @@
     #   osc-lib
     #   python-neutronclient
     #   python-openstackclient
-cmd2==2.3.2
+cmd2==2.3.3
     # via cliff
 cryptography==36.0.0
     # via