Bump coverage from 7.6.1 to 7.6.7 #844

Job	Run time
unit (utests)	55s
lint	40s
unit (tests-api-mock)	55s
integration (tests-noqueue, QuickTest)	1m 48s
unit (tests-server)	47s
integration (tests-noqueue, BuildFailedTest)	34s
integration (tests-noqueue, RepositoryTests)	34s
integration (tests-noqueue, TestBertE)	5m 35s
integration (tests-noqueue, TestQueueing)	40s
integration (tests-noqueue, TaskQueueTests)	3m 57s
integration (tests, QuickTest)	1m 41s
integration (tests, BuildFailedTest)	35s
integration (tests, RepositoryTests)	35s
integration (tests, TestBertE)	7m 6s
integration (tests, TestQueueing)	5m 36s
integration (tests, TaskQueueTests)	3m 31s
	35m 29s

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