Draft: Update repo for 20220815

Hello there. 👋

I got myself in a situation in which I (thought) I needed a more recent firmware for the recent'ish laptop I got (Lenovo X13 AMD Gen 2, with a Mediatek MT7921 WiFi card that didn't work well (or at all) in d-i. So I tried to update the repository.

Find the HEAD of a branch with a proposed changelog there: https://salsa.debian.org/odyx/firmware-nonfree/-/commits/release-20220815-1

And binary packages there: https://people.debian.org/~odyx/packages/firmware-nonfree/20220815/

A smaller MR is !24 (merged) that just fixes the Salsa-CI pipeline. This branch has these changes in too, to get a successful build.