feat(service): relax service module feature #380

Job	Run time
Check Style	16s
semver	2m 34s
Test with Miri	57s
features	55s
Test stable on ubuntu-latest	39s
Check MSRV (1.63)	1m 57s
Test stable on windows-latest	1m 14s
Test stable on macOS-latest	35s
Test beta on ubuntu-latest	37s
Test beta on windows-latest	1m 29s
Test beta on macOS-latest	34s
Test nightly on ubuntu-latest	35s
Test nightly on windows-latest	1m 21s
Test nightly on macOS-latest	31s
Build docs	14s
CI is green	1s
	14m 29s

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