Set a fixed test-time for test_pulse_collection_consumption()

Author: bouwew

tests/test_usb.py

@@ -946,8 +946,9 @@ def test_pulse_collection_consumption(
         """Testing pulse collection class."""
         monkeypatch.setattr(pw_energy_pulses, "MAX_LOG_HOURS", 24)
 
-        fixed_timestamp_utc = dt.now(UTC)
-        fixed_this_hour = fixed_timestamp_utc.replace(minute=0, second=0, microsecond=0)
+        # fixed_timestamp_utc = dt.now(UTC)
+        # fixed_this_hour = fixed_timestamp_utc.replace(minute=0, second=0, microsecond=0)
+        fixed_this_hour = freeze_time("2025-04-04 00:00:00")
 
         # Test consumption logs
         tst_consumption = pw_energy_pulses.PulseCollection(mac="0098765432101234")