Migrate to GitHub Actions #4

Job	Run time
Unit tests / Unit tests (swift:5.9-jammy, 5.9, true)	1m 17s
Benchmarks / Unit tests (swift:5.9-jammy, 5.9, true)	3m 34s
Unit tests / Unit tests (swift:5.10-jammy, 5.10, true)	1m 23s
Benchmarks / Unit tests (swift:5.10-jammy, 5.10, true)	3m 38s
Unit tests / Unit tests (swift:6.0-jammy, 6.0, true)	1m 35s
Benchmarks / Unit tests (swift:6.0-jammy, 6.0, true)	3m 28s
Unit tests / Unit tests (swiftlang/swift:nightly-6.0-jammy, nightly-6.0, true)	1m 50s
Benchmarks / Unit tests (swiftlang/swift:nightly-6.0-jammy, nightly-6.0, true)	4m 5s
Unit tests / Unit tests (swiftlang/swift:nightly-main-jammy, nightly-main, true)	1m 51s
Benchmarks / Unit tests (swiftlang/swift:nightly-main-jammy, nightly-main, true)	6h 0m 1s
Soundness / API breakage check	1m 43s
Soundness / Format check	32s
Soundness / Broken symlinks check	4s
Soundness / Documentation check	41s
Soundness / License headers check	7s
Soundness / Shell check	36s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	3s
Soundness / Python lint check	5s
Cxx interop / Cxx interop / Linux (5.9)	1m 20s
Cxx interop / Cxx interop / Windows (6.0)	3s
Cxx interop / Cxx interop / Windows (nightly-6.0)	2s
Cxx interop / Cxx interop / Linux (5.10)	1m 17s
Cxx interop / Cxx interop / Windows (nightly-main)	1s
Cxx interop / Cxx interop / Linux (6.0)	1m 19s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 36s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 35s
	6h 33m 49s

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