Wrap each request in a service scope #7

Job	Run time
build (ubuntu-latest, Release)	2m 16s
build (ubuntu-latest, Debug)	5m 20s
build (windows-latest, Debug)	4m 3s
build (windows-latest, Release)	3m 25s
build (macos-latest, Release)	1m 18s
build (macos-latest, Debug)	1m 45s
publish-coverage / publish-coverage	30s
	18m 37s

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