Actually fix the TSV timezone issue

tests/scrobbles_tests/test_utils.py

@@ -0,0 +1,12 @@
+from datetime import datetime
+import pytz
+from django.contrib.auth import get_user_model
+
+from vrobbler.apps.scrobbles.utils import timestamp_user_tz_to_utc
+
+
+def test_timestamp_user_tz_to_utc():
+    timestamp = timestamp_user_tz_to_utc(
+        1685561082, pytz.timezone("US/Eastern")
+    )
+    assert timestamp == datetime(2023, 5, 31, 23, 24, 42, tzinfo=pytz.utc)