Bump dessant/lock-threads from 4 to 5 #8475

Job	Run time
Coverage (ubuntu-latest)	8m 3s
Create VSIX	1m 54s
Check Python types	1m 40s
Lint	1m 52s
Python Tests (ubuntu-latest, 3.8)	1m 56s
Python Tests (ubuntu-latest, 3.x)	2m 6s
Tests (ubuntu-latest, 3.x, ts-unit)	4m 31s
Python Tests (ubuntu-latest, 3.12-dev)	2m 12s
Python Tests (windows-latest, 3.8)	5m 10s
Python Tests (windows-latest, 3.x)	4m 56s
Python Tests (windows-latest, 3.12-dev)	5m 50s
Tests (ubuntu-latest, 3.x, venv)	2m 53s
Tests (ubuntu-latest, 3.x, single-workspace)	3m 56s
Tests (ubuntu-latest, 3.x, debugger)	4m 8s
Tests (ubuntu-latest, 3.x, functional)	2m 20s
Tests (windows-latest, 3.x, ts-unit)	7m 27s
Tests (windows-latest, 3.x, venv)	7m 17s
Tests (windows-latest, 3.x, single-workspace)	7m 29s
Tests (windows-latest, 3.x, debugger)	6m 7s
Tests (windows-latest, 3.x, functional)	6m 0s
Smoke tests (ubuntu-latest)	3m 28s
Smoke tests (windows-latest)	5m 8s
	1h 36m 23s

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