Add libsodium support for MacOS

[Gedochao]

https://github.com/VirtusLab/libsodiumjni needs adjusting to make GitHub create secret tests pass on MacOS

scala-cli/modules/integration/src/test/scala/scala/cli/integration/GitHubTests.scala

Lines 69 to 71 in 61cc86c

	if (TestUtil.cliKind != "native-static")
	if (Properties.isMac) test("create secret".flaky)(createSecret())
	else test("create secret")(TestUtil.retryOnCi()(createSecret()))