CI: remove branch-coverage kosli evidence until it is reported #76

Job	Run time
pre-build	3s
build-test-push / Build test publish	1m 22s
deploy-staging / pre-deployment	1s
deploy-staging / deploy / terraform	3m 19s
deploy-prod / pre-deployment	1s
deploy-prod / deploy / terraform	2m 53s
	7m 39s

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