3.12 test is throwing the following warnings:

 /home/runner/work/roundup/roundup/roundup/date.py:379: DeprecationWarning: datetime.utcnow() 
is deprecated and scheduled for removal in a future version. Use timezone-aware objects to 
represent datetimes in UTC: datetime.now(datetime.UTC).

probably need a roundup/anypy/datetime_.py that exports a utcnow() function and then
and import and replace datetime.datetime.utcnow() to utcnow() in:

 date.py, rate_limit.py, test/rest_common.py

source:

https://github.com/roundup-tracker/roundup/actions/runs/5085234225/jobs/9138474935

See also: https://blog.ganssle.io/articles/2019/11/utcnow.html

changeset:   7587:8f29e4ea05ce

fixes this using the method described.

Checked coverage. It was taking the alternate branch that used utcnow() and not now(UTC).

changeset:   7589:6894f152d49a should fix this I think.

And it did fix it, but other dates in the rate_limit.py module were naive dates
and had to be converted to tz aware dates for 3.11+ otherwise the arithmetic would
fail. Also had to marshall/unmarshall to iso format when saving in the db.

changeset:   7590:5fbd3af526bd

passed ci and I verified that both code paths in datetime_.py were executed.