Update peaceiris/actions-gh-pages action to v4 #432

Job	Run time
Build docs	0s
Build Package	0s
Scan Licenses	0s
CodeQL Analyze	2m 15s
Lint	1m 14s
Security Lint	58s
SonarCloud	37s
Test Python 3.6 - ubuntu	4s
Test Python 3.7 - ubuntu	41s
Check Types	53s
Test Python 3.8 - ubuntu	27s
Test Python 3.9 - ubuntu	50s
Test Python 3.6 - windows	1m 37s
Test Python 3.7 - windows	1m 35s
Test Python 3.8 - windows	1m 16s
Test Python 3.9 - windows	1m 5s
Test Python 3.6 - macos	1m 52s
Test Python 3.7 - macos	1m 16s
Test Python 3.8 - macos	58s
Test Python 3.9 - macos	1m 16s
Test Build Python ${{ matrix.py }} - ${{ matrix.os }}	0s
Publish Package	0s
Publish Docs	0s
	18m 54s

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