Set strict to True when parsing dates in webserver views

[hussein-awala]

related: #33478
(I prefer to keep it open after merging this one)

This PR switch to strict datetime parsing to avoid rendering the views with unexpected dates:

>>> timezone = pendulum.tz.timezone("UTC")

>>> pendulum.parse("2023-08-18T21:23:10.518109+00:00", tz=timezone, strict=False)
DateTime(2023, 8, 18, 21, 23, 10, 518109, tzinfo=Timezone('+00:00'))

>>> pendulum.parse("2023-08-18T21:23:10.518109 00:00", tz=timezone, strict=False)
DateTime(2023, 8, 18, 0, 0, 0, 518109, tzinfo=Timezone('UTC'))

>>> pendulum.parse("2023-08-18T21:23:10.518109 00:00", tz=timezone, strict=True)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/hussein.awala/anaconda3/envs/airflow-env/lib/python3.9/site-packages/pendulum/parser.py", line 29, in parse
    return _parse(text, **options)
  File "/home/hussein.awala/anaconda3/envs/airflow-env/lib/python3.9/site-packages/pendulum/parser.py", line 45, in _parse
    parsed = base_parse(text, **options)
  File "/home/hussein.awala/anaconda3/envs/airflow-env/lib/python3.9/site-packages/pendulum/parsing/__init__.py", line 74, in parse
    return _normalize(_parse(text, **_options), **_options)
  File "/home/hussein.awala/anaconda3/envs/airflow-env/lib/python3.9/site-packages/pendulum/parsing/__init__.py", line 128, in _parse
    raise ParserError("Unable to parse string [{}]".format(text))
pendulum.parsing.exceptions.ParserError: Unable to parse string [2023-08-18T21:23:10.518109 00:00]

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[potiuk]

I rebased it - but I think there will still be test failures.