Prepare release v1.20.0 #570

Job	Run time
Resolve PHP Version	7s
Cleanup Orphaned Pull Request Previews	0s
Cleanup Pull Request Preview	-1s
Generate Reports	44s
Verify Pull Request Reports Preview	7s
Verify Main Reports Deployment	-1s
Comment Pull Request Preview URLs	3s
Summarize Reports Workflow	7s
	1m 6s

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