Belgium IBAN incorrect checksum

[halbow]

Hi 👋

First of all, thanks for this great library 🚀

I just bumped faker to 35.2.0 (from 33.0) and got some errors about IBAN nl_BE being invalid (e.g. BE02134082897882, BE98124280189433). When cross checking IBAN on website like this one
it is also marked as invalid.
This can easily be reproduced on the latest docker python image:

>>> from faker import Faker
>>> fake = Faker(locale="nl_BE")
>>> fake.iban()
'BE88308580548828'

Looks like a regression from #2142 ? From what I see the fix has been merged and released in v33.3.1