build

Update sbt-scoverage to 2.2.2 #7113

Job	Run time
build-mdbook	25s
format-check	3m 55s
docker-tests	22m 58s
compiler-warnings	2m 19s
integration-tests (ubuntu-latest, oopsla19)	19m 29s
scaladoc-check	2m 53s
integration-tests (ubuntu-latest, arrays)	10m 44s
unit-tests (ubuntu-latest)	6m 44s
integration-tests (macos-latest, oopsla19)	22m 44s
unit-tests (macos-latest)	4m 32s
	1h 36m 43s

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