Add workflow files for project sync #7677

Job	Run time
Type check	13s
Pre-commit checks / Pre-commit Checks	13s
Package Briefcase (automation) / Create Python Package	25s
Check towncrier / Towncrier Checks	22s
Package Briefcase / Create Python Package	21s
Package Briefcase (debugger) / Create Python Package	18s
Documentation linting	1m 8s
Unit tests	0s
Verify project	-1s
Build app	-1s
Project coverage	-1s
	2m 57s

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