Add Cli/API/UI tests for bootc

[sambible]

Problem Statement

Adds tests for CLI/UI/API for bootc, using dummy facts

Related Issues

Relies on: SatelliteQE/airgun#1745 and SatelliteQE/nailgun#1277

[sambible]

trigger: test-robottelo
pytest: tests/foreman/ui/test_host.py::test_bootc_booted_container_images tests/foreman/cli/test_host.py::test_positive_register_read_bootc tests/foreman/api/test_host.py::test_positive_bootc_api_actions --co
airgun: 1745
nailgun: 1277

[LadislavVasina1]

trigger: test-robottelo
pytest: tests/foreman/ui/test_host.py::test_bootc_booted_container_images tests/foreman/cli/test_host.py::test_positive_register_read_bootc tests/foreman/api/test_host.py::test_positive_bootc_api_actions
airgun: 1745
nailgun: 1277

[Satellite-QE]

PRT Result

Build Number: 10262
Build Status: UNSTABLE
PRT Comment: pytest tests/foreman/ui/test_host.py::test_bootc_booted_container_images tests/foreman/cli/test_host.py::test_positive_register_read_bootc tests/foreman/api/test_host.py::test_positive_bootc_api_actions --external-logging
Test Result : ================== 30 warnings, 3 errors in 542.21s (0:09:02) ==================