F OpenNebula/one#6622: add qcow2 formar support for volatile disk (#3212)

Author: jloboescalona2

source/intro_release_notes/release_notes/whats_new.rst

@@ -56,6 +56,7 @@ Additionally, the following functionalities are present that were not in OpenNeb
 - `Fix Filter datastore type when deploy a VM <https://github.com/OpenNebula/one/issues/6927>`__.
 - `Fix show more labels in cards <https://github.com/OpenNebula/one/issues/6643>`__.
 - `Fix host tab does not validate Enable/Disable button states <https://github.com/OpenNebula/one/issues/6792>`__.
+- `Fix add qcow2 format support for volatile disk type "swap" <https://github.com/OpenNebula/one/issues/6622>`__.
 
 Other Issues Solved
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