[CI] Include the first occurrence of a task failure in the nightly report

[asfimport]

It would be useful if the nightly report would help to identify the time of the regression when a nightly build has started to fail.
We can automatize this during the report generation by filtering the crossbow branches for the task's name, like on the github UI: https://github.com/ursacomputing/crossbow/branches/all?query=test-conda-python-3.7-turbodbc-latest

In order to avoid reaching the github rate limit, we could limit this search for the last one or two weeks and mark the older issues as persistent.

Reporter: Krisztian Szucs / @kszucs

_{Note: This issue was originally created as ARROW-12821. Please see the migration documentation for further details.}

[asfimport]

Jacob Wujciak / @assignUser:
CC @raulcd  

[github-actions]

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