Infinite loop in CalendarIntervalTrigger with UTC timezone

[unights]

Things to check first

• [X] I have checked that my issue does not already have a solution in the FAQ

• [X] I have searched the existing issues and didn't find my bug already reported there

• [X] I have checked that my bug is still present in the latest release

Version

4.0.0a4

What happened?

Time with UTC timezone will be always not equal to other time.

from datetime import time
from zoneinfo import ZoneInfo

utctime = time(0, 0, tzinfo=ZoneInfo('UTC'))

a = time(0, 0)
b = time(0, 0, tzinfo=ZoneInfo("Asia/Shanghai"))
c = time(0, 0, tzinfo=ZoneInfo("Asia/Tokyo"))

print(a == utctime)  # False
print(a == b == c)   # True

So the condition here will always be False

https://github.com/agronholm/apscheduler/blob/3e42a1bd73da947634ea94724e5221a43ad7ce0c/src/apscheduler/triggers/calendarinterval.py#L121

It should be call .timetz() to get the time part.

How can we reproduce the bug?

from apscheduler.triggers.calendarinterval import CalendarIntervalTrigger

trigger = CalendarIntervalTrigger(days=1, timezone="UTC")

print(trigger.next())

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\.venv\Lib\site-packages\apscheduler\triggers\calendarinterval.py", line 109, in next
    next_time = datetime.fromtimestamp(timestamp, self.timezone)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 22] Invalid argument