With switching the SOAP library backing oslo.vmware [1], the internal
representation of ManagedObjectReference's attributes changes. To be able
to make the switch without interruption, we introduced helper functions
in oslo.vmware. This commit uses one of those - get_moref_value()
- to make the access to the "value" attribute compatible with both
backing libraries.
Bump oslo.vmware lower-constraint to a version containing the helper
function. We bump one version higher, because we already merged a patch
(I3c769d3499f906b33725171a57313c8ae35b6a1d) that uses the cookiejar
access contained in that version.
[1] https://specs.openstack.org/openstack/oslo-specs/specs/victoria/oslo-vmware-soap-library-switch.html
Change-Id: I48841a777aaa2e515c141857099c16483ab619e0