Merge branch 'rollout-v0.28.1' into 'master'

.gitlab-ci.yml

...fault/devices/base_device_classes/test_power_hierarchy.py

tangostationcontrol/tangostationcontrol/common/states.py

...ioncontrol/devices/base_device_classes/power_hierarchy.py

...stationcontrol/tangostationcontrol/devices/calibration.py

...ncontrol/tangostationcontrol/devices/observation_field.py

tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py

...ioncontrol/tangostationcontrol/devices/station_manager.py

...stationcontrol/tangostationcontrol/metrics/_decorators.py

tangostationcontrol/tangostationcontrol/metrics/_metrics.py

tangostationcontrol/test/metrics/test_metrics.py