fix(server): start header read timeout immediately (#3185) #2719

Job	Run time
semver	18s
Check Style	5s
Verify hyper.h is up to date	29s
Test C API (FFI)	28s
minimal-versions	24s
Test with Miri	2m 13s
features	27s
Check MSRV	42s
udeps	25s
unexpected-cfgs	21s
Test stable on ubuntu-latest	1m 14s
Test stable on windows-latest	3m 22s
Test stable on macOS-latest	2m 7s
Test beta on ubuntu-latest	1m 16s
Test beta on windows-latest	2m 51s
Test beta on macOS-latest	1m 19s
Test nightly on ubuntu-latest	1m 21s
Test nightly on windows-latest	2m 41s
Test nightly on macOS-latest	1m 44s
Check exposed types	17s
Build docs	25s
CI is green	1s
	24m 30s

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