All banks are supposed to provide at least 90 days of access.

As of July 2023 EEA banks are required to allow access for up to 180
days[0], but this does not apply to UK banks, and apparently there might
still be EEA banks which don't comply with the new regulations.

We should consider eventually defaulting to 180 days and allowing
per-bank and maybe per-country overrides, but bumping it to 90 days
immediately provides a better user experience.

  [0]: https://nordigen.zendesk.com/hc/en-gb/articles/13239212055581-EEA-180-day-access



Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>