chore(server): Add ServerIoStream type (#2054) #3782

Job	Run time
codegen	47s
deny	11s
clippy	1m 31s
check (ubuntu-latest)	3m 9s
check (macOS-latest)	3m 37s
external-types	42s
check (windows-latest)	6m 12s
Interop Tests (ubuntu-latest)	41s
msrv	1m 17s
Interop Tests (macOS-latest)	1m 14s
semver	1m 19s
Interop Tests (windows-latest)	3m 35s
test (ubuntu-latest)	3m 32s
test (macOS-latest)	3m 4s
rustfmt	13s
udeps	4m 4s
test (windows-latest)	6m 10s
	41m 18s

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