Introduce problem to check the PR workflows from forks #397

Job	Run time
store-pr	8s
dump-unicode-data / generate-dump	5s
check-pr / check-style	2m 49s
check-pr / check-macos / check	2m 51s
check-pr / check-linux / check	2m 47s
check-pr / check-windows / check	2m 33s
	11m 13s

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