Describe the bug
Pipewire not detected

To Reproduce

1. Install by using:

sudo dnf copr enable rivenirvana/soundux
sudo dnf install soundux

2. start soundux
3. click pipewire on the No audio backend found popup

Console output

soundux
[10:59:25] [success] Config read
[10:59:25] [success] LibWnck found - Icon support is enabled
[10:59:25] [failure] Failed to create AudioBackend instance
[10:59:25] [message] Using DISPLAY :1
[11:00:15] [failure] Failed to load pipewire
[11:00:15] [failure] Failed to create AudioBackend instance
[11:00:20] [failure] Failed to load pipewire
[11:00:20] [failure] Failed to create AudioBackend instance

Expected behavior
Pipewire is detectedsc

Screenshots

Desktop:

• Environment: Linux COPR
• Version soundux.x86_64 0.2.7-1.fc34 @copr:copr.fedorainfracloud.org:rivenirvana:soundux
• Distribution: Fedora 34 AMD64

Additional context
Add any other context about the problem here.

Checklist

I confirm that...

• I have collected all the required information and read all the comments in this document
• I searched for an existing bug report for this issue
• the problem does occur with the reproduction steps I provided
• what I described is indeed a problem