Reproducible build of appimage fails on Fedora 42 host

[f321x]

Description

There seems to be some issue making the 4.6.0b1 Appimage build non reproducible on my Fedora 42 host, either caused by Fedora or some issue with my OS, nevertheless some information of the host seems to leak into the build script altering it's output. Building on a clean Debian 12 VM produces the same outputs as the release.

This is the Appimage created on my Fedora host: https://drive.proton.me/urls/GZWW8NWVHW#2DcnVW15TfDF

Docker version:

user@hp:~$ docker version
Client: Docker Engine - Community
 Version:           28.2.2
 API version:       1.50
 Go version:        go1.24.3
 Git commit:        e6534b4
 Built:             Fri May 30 12:09:10 2025
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          28.2.2
  API version:      1.50 (minimum version 1.24)
  Go version:       go1.24.3
  Git commit:       45873be
  Built:            Fri May 30 12:07:24 2025
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.7.27
  GitCommit:        05044ec0a9a75232cad458027ca83437aae3f4da
 runc:
  Version:          1.2.5
  GitCommit:        v1.2.5-0-g59923ef
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

System information:

Operating System: Fedora Linux 42
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.1
Kernel Version: 6.14.9-300.fc42.x86_64 (64-bit)
Graphics Platform: Wayland

This doesn't seem super urgent as it's still possible to reproduce on a Debian host, however opening this issue so we can investigate if more issues arise.