ci: simplistic way to get macOS running #637

Job	Run time
Java tests (swift:6.1.2 jdk:Corretto os:jammy)	8m 18s
Java tests (swift:6.1.2 jdk:Corretto os:macos)	14s
Swift tests (swift:6.1.2 jdk:Corretto os:jammy)	5m 2s
Swift tests (swift:6.1.2 jdk:Corretto os:macos)	14s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	13s
Verify Sample JavaSieve (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:Corretto os:sequoia)	14s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	3m 58s
Verify Sample JavaSieve (swift:6.1.2 jdk:Corretto os:jammy)	1m 24s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:Corretto os:jammy)	6m 28s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	5m 24s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:Corretto os:jammy)	3m 49s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:Corretto os:jammy)	5m 20s
soundness / Documentation check	42s
soundness / Unacceptable language check	4s
soundness / Python lint check	4s
soundness / License headers check	8s
soundness / API breakage check	0s
soundness / Shell check	32s
soundness / Broken symlinks check	4s
soundness / YAML lint check	5s
soundness / Format check	0s
	43m 13s

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