randomly failing tests in CI

[plribeiro3000]

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Randomly failing tests in CI, probably dependent on some variable order of things

Fog::Compute[:openstack] | security_group (openstack) ++++++++
tests/openstack/models/compute/security_group_tests.rb success Fog::Compute[:openstack] | security_group (openstack) - successfully destroyed rule expected => true returned => false

  tests/openstack/models/compute/security_group_tests.rb
  - succeeds
    expected => true
    returned => false

  tests/openstack/models/compute/security_group_tests.rb
  - succeeds
    expected => true
    returned => false

and

Fog::Compute[:openstack] | server requests (openstack) +++++

tests/openstack/requests/compute/server_tests.rb success Fog::Compute[:openstack] | server requests (openstack)

• succeeds expected => true returned => false

Original issue opened by @Ladas at fog/fog#3603

[plribeiro3000]

cc/ @Ladas @geemus