feat(transport-http): layer client #4004

Job	Run time
cfg-check	32s
clippy	48s
check no_std	20s
docs	1m 4s
doctest	1m 55s
feature-checks	3m 37s
fmt	12s
wasm-unknown	1m 9s
wasm-wasi	1m 8s
test ubuntu-latest stable --no-default-features	1m 32s
test ubuntu-latest stable	2m 0s
test ubuntu-latest stable --all-features	2m 21s
test ubuntu-latest nightly --no-default-features	1m 14s
test ubuntu-latest nightly	1m 35s
test ubuntu-latest nightly --all-features	2m 5s
test ubuntu-latest 1.79 --no-default-features	1m 3s
test ubuntu-latest 1.79	1m 4s
test windows-latest stable --no-default-features	3m 38s
test windows-latest stable	5m 31s
test windows-latest stable --all-features	4m 53s
test windows-latest nightly --no-default-features	2m 56s
test windows-latest nightly	3m 36s
test windows-latest nightly --all-features	5m 25s
test windows-latest 1.79 --no-default-features	2m 22s
test windows-latest 1.79	2m 47s
	54m 47s

Provide feedback