ci: simplistic way to get macOS running #638

Job	Run time
Java tests (swift:6.1.2 jdk:Corretto os:jammy)	34s
Java tests (swift:6.1.2 jdk:Corretto os:macos)	15s
Swift tests (swift:6.1.2 jdk:Corretto os:macos)	13s
Swift tests (swift:6.1.2 jdk:Corretto os:jammy)	38s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:Corretto os:jammy)	34s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:Corretto os:jammy)	34s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	34s
Verify Sample JavaSieve (swift:6.1.2 jdk:Corretto os:jammy)	35s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	13s
Verify Sample JavaSieve (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:Corretto os:jammy)	30s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	32s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	13s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	15s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:Corretto os:sequoia)	14s
soundness / Documentation check	34s
soundness / License headers check	8s
soundness / Broken symlinks check	3s
soundness / Format check	0s
soundness / YAML lint check	4s
soundness / Python lint check	5s
soundness / Shell check	30s
soundness / API breakage check	0s
soundness / Unacceptable language check	4s
	7m 50s

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