chore: remove prefixes from examples #444

Job	Run time
check-cube (ubuntu-latest, 20, basic-cube-constraint)	40s
check-constraint (ubuntu-latest, 20)	42s
check-constraint (windows-latest, 20.12.1)	3m 13s
check-cube (ubuntu-latest, 20, standalone-constraint-constraint)	1m 7s
check-cube (ubuntu-latest, 20, profile-visualize)	1m 33s
check-cube (ubuntu-latest, 20, profile-opendataswiss)	35s
check-cube (ubuntu-latest, 20, profile-opendataswiss-lindas)	45s
check-cube (windows-latest, 20.12.1, basic-cube-constraint)	2m 38s
check-cube (windows-latest, 20.12.1, standalone-constraint-constraint)	3m 10s
check-cube (windows-latest, 20.12.1, profile-visualize)	5m 12s
check-cube (windows-latest, 20.12.1, profile-opendataswiss)	3m 25s
check-cube (windows-latest, 20.12.1, profile-opendataswiss-lindas)	3m 29s
	26m 29s

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