Update src/frequenz/client/microgrid/metrics/_sample_proto.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Leandro Lucarella <luca-frequenz@llucax.com>

Author: llucax

src/frequenz/client/microgrid/metrics/_sample_proto.py

@@ -10,7 +10,7 @@
 
 from .._util import enum_from_proto
 from ._bounds import Bounds
-from ..metrics._metric import Metric
+from ._metric import Metric
 from ._bounds_proto import bounds_from_proto
 from ._sample import AggregatedMetricValue, MetricSample