build: miniupnpc 2.2.2

Summary:

Creating the dll subdir is no-longer required.
We can also drop our wingen patch.

Backport of core#20421.

Test Plan: Run the GUIX builds.

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D16562