merge develop-1.0

fix tz issue

aircox_streamer/management/commands/streamer.py

@@ -6,8 +6,8 @@ to:
 - cancels Diffusions that have an archive but could not have been played;
 - run Liquidsoap
 """
-from datetime import timezone
 import time
+import zoneinfo
 
 from argparse import RawTextHelpFormatter
 
@@ -19,7 +19,7 @@ from aircox_streamer.controllers import Monitor, Streamer
 
 
 # force using UTC
-tz.activate(timezone.utc)
+tz.activate(zoneinfo.ZoneInfo("UTC"))
 
 
 class Command(BaseCommand):