chore(typo): fix typo #2842

Job	Run time
semver	19s
Verify hyper.h is up to date	14s
Check Style	6s
Test with Miri	2m 14s
minimal-versions	31s
features	29s
Test C API (FFI)	17s
Check MSRV	1m 44s
udeps	19s
Test stable on ubuntu-latest	1m 7s
Test stable on windows-latest	2m 48s
Test stable on macOS-latest	1m 10s
Test beta on ubuntu-latest	1m 13s
Test beta on windows-latest	1m 46s
Test beta on macOS-latest	1m 4s
Test nightly on ubuntu-latest	1m 10s
Test nightly on windows-latest	1m 58s
Test nightly on macOS-latest	1m 24s
Check exposed types	14s
Build docs	20s
CI is green	0s
	20m 27s

Provide feedback