ci: Further measures to prevent collisions when running multiple copies of the test suit simultaneously

[silasary]

Pull Request Type

• Feature addition
• Bugfix
• Documentation update
• Code refactor
• Tests improvement
• CI/CD pipeline enhancement
• Other: [Replace with a description]

Description

I'm hoping this fixes the intermittant Voice Test failures.

Changes

• Makes the names of the voice channels used in tests even more unique.

Related Issues

Test Scenarios

Python Compatibility

• I've ensured my code works on Python 3.10.x
• I've ensured my code works on Python 3.11.x

Checklist

• I've run the pre-commit code linter over all edited files
• I've tested my changes on supported Python versions
• I've added tests for my code, if applicable
• I've updated / added documentation, where applicable

[silasary]

Tests failures are solved by #1649

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.12%. Comparing base (b96eece) to head (823d2fc).

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Additional details and impacted files

@@            Coverage Diff            @@
##           unstable    #1650   +/-   ##
=========================================
  Coverage     46.12%   46.12%           
=========================================
  Files           147      147           
  Lines         15650    15650           
=========================================
  Hits           7218     7218           
  Misses         8432     8432           

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