Pinning fdroidserver 2.4.4 hit androguard parse bugs on modern aapt2 APKs
(4.1+: NoOverwriteDict.append; 4.0.x: 'res1 must be zero!'). Upgrade to latest
fdroidserver which ships a compatible androguard.
fdroidserver 2.4.4 + androguard 4.1+ crashes in 'fdroid update' with
"'NoOverwriteDict' object has no attribute 'append'" while parsing the APK
v2/v3 signature. Pin androguard>=4.0,<4.1 to restore the self-hosted F-Droid
repo publish.