Make sure the script doesn't crash when a HTTP request fails

[PierreMesure]

Problem

My code isn't super smart, it fails when the data isn't received from a center's API. That stops the script and even the subsequent regions.

It's no big deal because that doesn't happen enough (only when the rate limitation is reached on MittVaccin so far) but it could easily be fixed.

Suggested solution

Implement a simple retry after a few seconds? Skip the center? The latter might not work since other centers which use the same platform will fail as well.

[PierreMesure]

This is fixed with a retry and a skip if fetching data fails permanently 😊