Bug: pytest reports sound loading failures during run

[pushfoo]

Describe the bug
pytest reports 4 sound loading failures during run in the form of FileNotFound errors.

To Reproduce
Steps to reproduce the behavior:

1. Install the game & dependencies per the install instructions
2. Activate the virtual environment
3. Run pyest
4. Multiple errors relating to sound loading are reported

pytest run output on pastebin

Expected behavior
Sound loading errors do not occur during pytest runs

Desktop (please complete the following information):

• OS: Debian GNU/Linux 11 (bullseye) x86_64
• Python: 3.9.2
• Arcade: 2.6.13, installed via install instructions from pip -r requirements.txt