ci: cleanup samples testing using matrix #630

Job	Run time
Java tests (swift:6.1.2 jdk:Corretto os:jammy)	8m 9s
Swift tests (swift:6.1.2 jdk:Corretto os:jammy)	4m 38s
Verify Sample JavaDependencySampleApp (swift:6.1.2 jdk:Corretto os:jammy)	5m 28s
Verify Sample JavaProbablyPrime (swift:6.1.2 jdk:Corretto os:jammy)	3m 41s
Verify Sample JavaSieve (swift:6.1.2 jdk:Corretto os:jammy)	1m 5s
Verify Sample JavaKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	3m 48s
Verify Sample SwiftAndJavaJarSampleLib (swift:6.1.2 jdk:Corretto os:jammy)	4m 2s
Verify Sample SwiftKitSampleApp (swift:6.1.2 jdk:Corretto os:jammy)	4m 15s
soundness / Shell check	33s
soundness / Documentation check	35s
soundness / API breakage check	0s
soundness / YAML lint check	4s
soundness / Python lint check	5s
soundness / Unacceptable language check	3s
soundness / Broken symlinks check	4s
soundness / License headers check	6s
soundness / Format check	-1s
	36m 35s

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