Rollup merge of #141009 - emmanuel-ferdman:master, r=marcoieni

Migrate to modern datetime API

# PR Summary
This small PR resolves the `datetime` library warnings:
```python
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). or datetime.datetime.utcnow()
```
Note that `.replace(tzinfo=None)` allows to keep the original behavior where the time appears as a naive UTC timestamp (i.e., without any timezone offset). Comparision:
```python
# With .utcnow() or .now(datetime.timezone.utc).replace(tzinfo=None)
Time,Idle
2025-05-14T15:40:25.013414,98.73417721518987

# With .now(datetime.timezone.utc)
Time,Idle
2025-05-14T15:40:25.013414+00:00,98.73417721518987
```
This commit is contained in:
Matthias Krüger 2025-05-16 07:19:42 +02:00 committed by GitHub
commit 6973a5bb18
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