Update snakegame to pass pyright #421

Job	Run time
list-examples	5s
check-export (ag_grid_finance)	1m 40s
check-export (azure_auth)	1m 15s
check-export (basic_crud)	1m 13s
check-export (chat_v2)	1m 29s
check-export (clock)	1m 15s
check-export (counter)	1m 5s
check-export (customer_data_app)	1m 9s
check-export (dalle)	1m 9s
check-export (data_visualisation)	1m 14s
check-export (flux-fast)	1m 8s
check-export (form-designer)	1m 17s
check-export (github-stats)	1m 21s
check-export (linkinbio)	1m 6s
check-export (local-component)	1m 9s
check-export (lorem-stream)	1m 11s
check-export (nba)	1m 43s
check-export (overkey)	59s
check-export (quiz)	1m 15s
check-export (reflexle)	1m 9s
check-export (sales)	1m 7s
check-export (snakegame)	57s
check-export (todo)	1m 2s
check-export (translator)	1m 7s
check-export (traversal)	1m 6s
check-export (twitter)	1m 5s
check-export (upload)	1m 6s
	31m 22s

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