Fix import-outside-toplevel pylint warnings in tests (#119389)

tests/components/arcam_fmj/test_media_player.py

tests/components/dsmr/test_mbus_migration.py

tests/components/dsmr/test_sensor.py

tests/components/izone/test_config_flow.py

tests/components/litterrobot/test_sensor.py

tests/components/mqtt/test_init.py

tests/components/recorder/db_schema_0.py

tests/components/recorder/test_util.py

tests/components/spc/test_init.py

tests/components/sun/test_init.py

tests/components/upb/test_config_flow.py

tests/components/v2c/test_sensor.py