Remove coerce_datetime usage from GCSTimeSpanFileTransformOperator

[lwyszomi]

Related to the issue with the compatibility with Airflow 2.1.+

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[lwyszomi]

@potiuk PR should fix #22499

[potiuk]

should not we actually check and convert "potential" dt.timetime to pendulum.DateTime here and below ? that's what corce_datetime did actually.

[potiuk]

cc: @uranusjr ?

[uranusjr]

Yes I think we should. Since context["execution_date"] can never be None, this can simply use pendulum.instance. The following_schedule() one below needs an additional check because it can be None.

[lwyszomi]

@uranusjr I will convert to the pendulum object. but regarding following_schedule we checking if the result is None, what additional check you have in mind?

[uranusjr]

Simply something like

following_execution_date = context["dag"].following_schedule(context["execution_date"])
if following_execution_date is None:
    timespan_end: Optional[pendulum.DateTime] = None
else:
    timespan_end = pendulum.instance(following_execution_date)

[lwyszomi]

ok, make sense

[lwyszomi]

@potiuk @uranusjr Done

[github-actions]

The PR is likely OK to be merged with just subset of tests for default Python and Database versions without running the full matrix of tests, because it does not modify the core of Airflow. If the committers decide that the full tests matrix is needed, they will add the label 'full tests needed'. Then you should rebase to the latest main or amend the last commit of the PR, and push it with --force-with-lease.