There are a few places in jpackage impl/tests where opened I/O streams are left unclosed:

- Files.newInputStream(...) without the corresponding Closeable#close() call at [1], [2], [3], [4], [5]

- Class#getResourceAsStream(...) without the corresponding Closeable#close() call at [6]

Add missing Closeable#close() calls, use try-with-resource blocks, or use a different API.

[1] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/src/jdk.jpackage/macosx/classes/jdk/jpackage/internal/AppImageInfoPListFile.java#L53

[2] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/src/jdk.jpackage/share/classes/jdk/jpackage/internal/AppImageFile.java#L165

[3] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/test/jdk/tools/jpackage/helpers/jdk/jpackage/test/AppImageFile.java#L135

[4] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/test/jdk/tools/jpackage/macosx/HostArchPkgTest.java#L68

[5] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/test/jdk/tools/jpackage/windows/WinLongVersionTest.java#L184

[6] https://github.com/openjdk/jdk/blob/1fb5030ab351a52b4a7455cbdd57f5b50aab9bd5/test/jdk/tools/jpackage/helpers/jdk/jpackage/test/LauncherVerifier.java#L460