A lot of updates on every pull from azure devops

Hi,

I'm running the develop version of bugwarrior and I pull from Azure DevOps. On every pull, there a lot of updates, although there aren't that much updates on the repository. As far as I see, it's mostly about timestamps getting updated while there is no update needed. These a few lines of a latest run:

```
May 22 19:51:53 euler bugwarrior[577083]: INFO:bugwarrior.db:Updating task f7b0ea3c-5265-476d-9436-f5d159e8dc8b, [ADO-2278] Zeus: update documentation; entry: datetime.datetime(2024, 5, 17, 8, 18, 29, tzinfo=tzutc()) -> datetime.datetime(2024, 5, 17, 8, 18, 29, 90000, tzinfo=tzutc())
May 22 19:51:53 euler bugwarrior[577083]: INFO:bugwarrior.db:Updating task dcd310bd-1bca-4c54-a57a-82cefa29afbb, [ADO-2279] Zeus: setup backup; entry: datetime.datetime(2024, 5, 17, 8, 19, 37, tzinfo=tzutc()) -> datetime.datetime(2024, 5, 17, 8, 19, 37, 877000, tzinfo=tzutc())
May 22 19:51:53 euler bugwarrior[577083]: INFO:bugwarrior.db:Updating task 43ad00fd-784b-43cf-a56f-f860eada7720, [ADO-2280] Amun: extend diskspace; entry: datetime.datetime(2024, 5, 17, 8, 19, 46, tzinfo=tzutc()) -> datetime.datetime(2024, 5, 17, 8, 19, 46, 740000, tzinfo=tzutc())
May 22 19:51:53 euler bugwarrior[577083]: INFO:bugwarrior.db:Updating task 7360a361-c2f9-4ac0-90f2-4b852069fb42, [ADO-2283] Horus: DSM update; entry: datetime.datetime(2024, 5, 21, 7, 30, 2, tzinfo=tzutc()) -> datetime.datetime(2024, 5, 21, 7, 30, 2, 170000, tzinfo=tzutc())
May 22 19:51:54 euler bugwarrior[577083]: INFO:bugwarrior.db:Updating task b901a9c0-59f3-4e7c-a8c7-274cdf1fcbdf, [ADO-2284] Horus: cache review; entry: datetime.datetime(2024, 5, 21, 7, 30, 36, tzinfo=tzutc()) -> datetime.datetime(2024, 5, 21, 7, 30, 36, 450000, tzinfo=tzutc())
```

It looks like it tries to add microseconds to the time stamp but those are ignored by taskwarrior. Or at least that's how I interpret the output.