Update actions/download-artifact action to v4 - autoclosed #421

Job	Run time
Build Package (windows)	1m 5s
CodeQL Analyze	3m 11s
Build docs	1m 9s
Scan Licenses	12s
Lint	1m 6s
Security Lint	49s
SonarCloud	33s
Test Python 3.6 - ubuntu	4s
Test Python 3.7 - ubuntu	28s
Check Types	1m 26s
Test Python 3.8 - ubuntu	24s
Test Python 3.9 - ubuntu	26s
Test Python 3.6 - windows	2m 1s
Test Python 3.7 - windows	51s
Test Python 3.8 - windows	1m 23s
Test Python 3.9 - windows	56s
Test Python 3.6 - macos	1m 29s
Test Python 3.7 - macos	37s
Test Python 3.8 - macos	43s
Test Python 3.9 - macos	44s
Test Build Python ${{ matrix.py }} - ${{ matrix.os }}	0s
Publish Package	0s
Publish Docs	0s
	19m 37s

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