feat: reduce Send requirements on auto connections (#59) #199

Job	Run time
Check Style	12s
Check MSRV (1.63)	3m 52s
features	41s
Test with Miri	41s
Test stable on ubuntu-latest	26s
Test stable on windows-latest	1m 0s
Test stable on macOS-latest	56s
Test beta on ubuntu-latest	26s
Test beta on windows-latest	58s
Test beta on macOS-latest	59s
Test nightly on ubuntu-latest	25s
Test nightly on windows-latest	1m 5s
Test nightly on macOS-latest	1m 6s
Build docs	20s
CI is green	1s
	13m 8s

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