ExampleSwiftLibrary: adjust imports for Windows #302

Job	Run time
Swift tests (swift:nightly-main jdk:Corretto os:jammy)	6m 13s
Java tests (swift:nightly-main jdk:Corretto os:jammy)	7m 16s
soundness / Documentation check	39s
soundness / API breakage check	0s
soundness / License headers check	5s
soundness / Unacceptable language check	5s
soundness / Broken symlinks check	3s
soundness / Python lint check	3s
soundness / YAML lint check	7s
soundness / Shell check	34s
soundness / Format check	0s
	15m 5s

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