Update from 6.0.1 over several smaller releases to 7.0.1
Changelog: https://github.com/marshmallow-code/webargs/blob/dev/CHANGELOG.rst#701-2020-12-14
I unfortunately overlooked that PR 252489 benefits from this patch and have already committed that patch. To avoid problems with the user, I would like to commit this patch as soon as possible, sorry.
Submitted by Goran Mekic <meka@tilda.center> (maintainer) in PR 252440.
Tested on Poudriere (amd64, i386). 'portlint -AC' is fine.