CSV Schema More Flexible Timestamp Inference

[tustvold]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

The schema inference logic for CSV currently only infers timestamps matching the regex ^\d{4}-\d\d-\d\d[T ]\d\d:\d\d:\d\d.\d{1,9}$. This is significantly more restrictive than the parsing logic.

Describe the solution you'd like

Infer timestamp for all the types recognised by the parsing logic

Describe alternatives you've considered

Additional context

#3744 #4129

[alamb]

Both #3744 #4129 are fixed -- I wonder if this ticket can also be closed

[tustvold]

#4217 will close this, not sure why the link isn't showing up...

Edit: I typoed the ticket reference 🤦

[tustvold]

label_issue.py automatically added labels {'arrow'} from #4217