Add support for HTTP/1 connection pre-warming #163

Job	Run time
Cxx interop / Construct Cxx interop matrix	5s
Unit tests / Construct unit test matrix	5s
Release builds / Construct release build matrix	4s
Soundness / Broken symlinks check	5s
Soundness / Documentation check	3m 6s
Soundness / Shell check	35s
Soundness / License headers check	6s
Soundness / API breakage check	4m 31s
Soundness / Unacceptable language check	6s
Soundness / YAML lint check	5s
Soundness / Format check	38s
Static SDK / Static SDK / Linux (latest-release Jammy)	3m 34s
Soundness / Python lint check	8s
Static SDK / Static SDK / Linux (main Jammy)	4m 25s
Release builds / Release builds / Linux (5.10)	3m 56s
Release builds / Release builds / Linux (nightly-next)	5m 36s
Release builds / Release builds / Linux (6.0)	3m 55s
Release builds / Release builds / Linux (6.1)	3m 54s
Release builds / Release builds / Linux (nightly-main)	5m 26s
Unit tests / Unit tests / Linux (nightly-next)	6m 33s
Unit tests / Unit tests / Linux (6.0)	3m 5s
Unit tests / Unit tests / Linux (5.10)	2m 43s
Unit tests / Unit tests / Linux (nightly-main)	6m 4s
Unit tests / Unit tests / Linux (6.1)	5m 21s
Cxx interop / Cxx interop / Linux (5.10)	2m 43s
Cxx interop / Cxx interop / Linux (6.0)	2m 55s
Cxx interop / Cxx interop / Linux (nightly-next)	4m 42s
Cxx interop / Cxx interop / Linux (nightly-main)	4m 33s
Cxx interop / Cxx interop / Linux (6.1)	3m 0s
	1h 21m 59s

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