Bug#1104638: python3-icalendar still depends on python3-tz

[Nelson A. de Oliveira]

reopen 1104638
thanks

Hi!

python3-icalendar still depends on python3-tz

See 
https://salsa.debian.org/python-team/packages/python-icalendar/-/blob/master/debian/control?ref_type=heads#L53

Best regards,
Nelson