typo: Avaialability -> Availability #275

Job	Run time
Validate generated code	2m 52s
Run tests using swift-syntax-dev-utils (Linux)	24m 13s
Run tests using swift-syntax-dev-utils (Windows)	39m 48s
Test / Linux (5.10 - jammy)	3m 53s
Test / Linux (nightly-6.2 - jammy)	4m 47s
Test / Linux (nightly-main - jammy)	4m 57s
Test / Linux (6.0 - jammy)	4m 7s
Test / Windows (5.9 - windows-2022)	14m 13s
Test / Windows (6.1 - windows-2022)	12m 17s
Test / Windows (6.0 - windows-2022)	18m 27s
Test / Linux (6.1 - jammy)	4m 15s
Test / Windows (nightly - windows-2022)	21m 31s
Test / Windows (nightly-6.2 - windows-2022)	21m 47s
Test / Linux (5.9 - jammy)	4m 1s
Test / macOS (Xcode ${{ matrix.xcode_version }} - ${{ matrix.os_version }} - ${{ matrix.arch }})	-1s
Soundness / Shell check	36s
Soundness / YAML lint check	4s
Soundness / Unacceptable language check	6s
Soundness / Documentation check	4m 47s
Soundness / Broken symlinks check	4s
Soundness / License headers check	13s
Soundness / Format check	39s
Soundness / Python lint check	8s
Soundness / API breakage check	0s
	3h 7m 44s

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