feat(service): relax service module feature #399

Job	Run time
semver	24s
Check Style	23s
Check MSRV (1.63)	51s
features	51s
Test with Miri	46s
Test stable on ubuntu-latest	42s
Test stable on windows-latest	2m 16s
Test stable on macos-latest	25s
Test beta on ubuntu-latest	39s
Test beta on windows-latest	1m 16s
Test beta on macos-latest	33s
Test nightly on ubuntu-latest	34s
Test nightly on windows-latest	1m 14s
Test nightly on macos-latest	32s
Build docs	15s
CI is green	1s
	11m 42s

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