Add benchmark job in CI #32

Job	Run time
Test / Linux (6.2 - jammy)	1m 59s
Benchmark	5m 23s
Test / Linux (6.0 - jammy)	2m 6s
Test / Linux (6.1 - jammy)	1m 54s
Test / Linux (nightly-main - jammy)	2m 20s
Test / Linux (nightly-6.2 - jammy)	2m 4s
Test / Static Linux Swift SDK Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Soundness / License headers check	7s
Soundness / Broken symlinks check	6s
Soundness / Shell check	35s
Soundness / YAML lint check	5s
Soundness / API breakage check	1m 25s
Test / Windows (${{ matrix.swift_version }} - windows-2022)	0s
Soundness / Python lint check	11s
Soundness / Format check	0s
Test / Swift SDK for Wasm Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Test / macOS (Xcode ${{ matrix.xcode_version }} - ${{ matrix.os_version }} - ${{ matrix.arch }})	0s
Soundness / Documentation check	41s
Test / Embedded Swift SDK for Wasm Build (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Soundness / Unacceptable language check	0s
	18m 56s

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