Hotfix Correct created_at evaluation to time of insert for datetime date

[chrisjsimpson]

Is your feature request related to a problem? Please describe.

https://github.com/Subscribie/subscribie/issues/1336 broke created_at timestamps due to

This was caused by created_at = database.Column(database.DateTime, default=datetime.utcnow)

• https://github.com/Subscribie/subscribie/blob/3ee15c4fd1287f1a49a6ebb5a0c972629fd87754/subscribie/models.py#L143
• https://github.com/Subscribie/subscribie/blob/f10dd47856442088e6bd3e94f9e5904cf645c631/subscribie/models.py#L1092
• etc

Which was introduced as part of fixing the following deprecation warnings (36):

DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC)

Describe the solution you'd like

Take the Deprecation fix, but delay execution with created_at = lambda: datetime.datetime.now(datetime.UTC)

Describe alternatives you've considered

• func.now() exists but is not UTC by default.
• Don't want to pull in https://pypi.org/project/SQLAlchemy-Utc/#history

Additional context

[github-actions[bot]]

:rocket: Issue was released in v0.1.198 :rocket:

[github-actions[bot]]

:rocket: Issue was released in v0.1.198 :rocket: