Add DevTools self-update workflow #746

Job	Run time
Resolve PHP Version	8s
Cleanup Pull Request Preview	0s
Cleanup Orphaned Pull Request Previews	0s
Generate Reports	54s
Verify Pull Request Reports Preview	6s
Verify Main Reports Deployment	-1s
Summarize Reports Workflow	6s
Comment Pull Request Preview URLs	4s
	1m 17s

Provide feedback