tests: increase CopyrightProblemsPageTests timeout #783

Job	Run time
Build Deputy	49s
Perform tests (ubuntu-latest, chrome, canary)	52s
Perform tests (ubuntu-latest, chrome, stable)	1m 9s
Perform tests (ubuntu-latest, firefox, latest-beta)	1m 5s
Perform tests (ubuntu-latest, firefox, latest-esr)	1m 7s
Perform tests (ubuntu-latest, firefox, latest)	1m 10s
Perform tests (windows-latest, chrome, stable)	3m 4s
Perform tests (windows-latest, chrome, canary)	2m 39s
Perform tests (windows-latest, firefox, latest-beta)	2m 11s
Perform tests (windows-latest, firefox, latest-esr)	1m 51s
Perform tests (windows-latest, firefox, latest)	1m 39s
Draft release	0s
Deploy (English Wikipedia)	0s
	17m 36s

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