fix bug with unittest debug not having args #8085

Job	Run time
Check Python types	1m 58s
Create VSIX	2m 39s
Lint	2m 23s
Python Tests (ubuntu-latest, 3.8)	2m 39s
Python Tests (ubuntu-latest, 3.x)	2m 15s
Python Tests (ubuntu-latest, 3.12-dev)	2m 47s
Python Tests (windows-latest, 3.8)	5m 24s
Python Tests (windows-latest, 3.x)	4m 57s
Python Tests (windows-latest, 3.12-dev)	7m 20s
Coverage (ubuntu-latest)	11m 21s
Tests (ubuntu-latest, 3.x, ts-unit)	3m 41s
Tests (ubuntu-latest, 3.x, venv)	3m 55s
Tests (ubuntu-latest, 3.x, single-workspace)	3m 19s
Tests (ubuntu-latest, 3.x, debugger)	2m 35s
Tests (ubuntu-latest, 3.x, functional)	2m 4s
Tests (windows-latest, 3.x, ts-unit)	6m 12s
Tests (windows-latest, 3.x, venv)	5m 39s
Tests (windows-latest, 3.x, single-workspace)	6m 55s
Tests (windows-latest, 3.x, debugger)	5m 38s
Tests (windows-latest, 3.x, functional)	6m 1s
Smoke tests (ubuntu-latest)	2m 40s
Smoke tests (windows-latest)	5m 42s
	1h 38m 4s

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