Adapt to changes in broker stderr handling

[dosas]

Problem Statement

Since version 0.5 broker accesses the list and
decodes the stderr

https://github.com/SatelliteQE/broker/blob/master/broker/helpers.py#L512

Solution

Simple code adaptation

Related Issues

#15394

relevant tests

tests/foreman/api/test_location.py::TestLocation::test_positive_create_update_and_remove_capsule
tests/foreman/cli/test_organization.py::test_positive_add_and_remove_capsules

[omkarkhatavkar]

Can one of the admins verify this patch?

[JacobCallahan]

trigger: test-robottelo
pytest: tests/foreman/api/test_location.py -k test_positive_create_update_and_remove_capsule

[dosas]

@JacobCallahan Are the failing PRT tests related to the change?

[ogajduse]

It seems that it hit a pipeline error. Let's run it once again.

[ogajduse]

trigger: test-robottelo
pytest: tests/foreman/api/test_location.py -k test_positive_create_update_and_remove_capsule

[ogajduse]

Something is going on in our pipeline. I asked @omkarkhatavkar for help. I will post updates in the coming days.

[ogajduse]

trigger: test-robottelo
pytest: tests/foreman/api/test_location.py::TestLocation::test_positive_create_update_and_remove_capsule

[omkarkhatavkar]

trigger: test-robottelo
pytest: tests/foreman/api/test_location.py::TestLocation::test_positive_create_update_and_remove_capsule

[ogajduse]

Thanks for the patch, @dosas!