Use version 4.1.13 of the oVirt Ruby SDK
Use version 4.1.13 of the oVirt Ruby SDK

The more relevant changes in this version of the oVirt Ruby SDK are the
following:

* Virtual machine remove fails due to spelling mistake
  https://bugzilla.redhat.com/1509020[#1509020].

* Improve error message for empty response body
  https://bugzilla.redhat.com/1509020[#1509020].

* Don't send `Expect: 100-continue`
  https://bugzilla.redhat.com/1509910[#1509910].

* Don't include sensible data in the result of `inspect` and `to_s`
  https://bugzilla.redhat.com/1513620[#1513620].

This change addresses the following issue:

  Evm.log contains passwords
  https://bugzilla.redhat.com/1512977

pkliczewski/manageiq-providers-ovirt