ci: simplistic way to get macOS running #639

Job	Run time
Java tests (swift:6.1.2 jdk:corretto os:macos)	27s
Java tests (swift:6.1.2 jdk:corretto os:jammy)	1m 11s
Swift tests (swift:6.1.2 jdk:corretto os:macos)	23s
Swift tests (swift:6.1.2 jdk:corretto os:jammy)	4m 40s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:corretto os:sequoia)	8m 3s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:corretto os:sequoia)	8m 3s
Verify Sample JavaSieve (swift:6.1.2 jdk:corretto os:sequoia)	1s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:corretto os:sequoia)	1s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:corretto os:sequoia)	1s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:corretto os:sequoia)	1s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:corretto os:jammy)	1m 11s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:corretto os:jammy)	3m 32s
Verify Sample JavaSieve (swift:6.1.2 jdk:corretto os:jammy)	58s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:corretto os:jammy)	3m 54s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:corretto os:jammy)	1m 9s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:corretto os:jammy)	3m 35s
soundness / Documentation check	36s
soundness / License headers check	7s
soundness / Unacceptable language check	5s
soundness / Broken symlinks check	5s
soundness / Shell check	36s
soundness / YAML lint check	7s
soundness / Python lint check	6s
soundness / API breakage check	0s
soundness / Format check	-1s
	38m 51s

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