model: Mark Project constructor with @fg_affinity to prevent it from … #776

Job	Run time
build-macos (macos-latest, 3.8)	12m 11s
build-windows (windows-2019, 3.8)	11m 53s
build-linux (ubuntu-22.04, 3.8)	3m 44s
build-macos (macos-latest, 3.9)	12m 28s
build-windows (windows-2019, 3.9)	12m 11s
build-windows (windows-latest, 3.8)	17m 54s
build-linux (ubuntu-22.04, 3.9)	3m 40s
build-windows (windows-latest, 3.9)	18m 1s
	1h 32m 2s

Provide feedback