(128068512) FoundationEssentials: correct the use of open on Windows (#607)

`open` is a variatic function and does not take the same permission
modes on Windows. Prefer to use `_sopen_s` to allow us to have a
non-variadic signature and repair the runtime on Windows.

Author: compnerd

Sources/FoundationEssentials/Data/Data+Writing.swift

@@ -34,6 +34,10 @@ private func openFileDescriptorProtected(path: UnsafePointer<CChar>, flags: Int3
 #if FOUNDATION_FRAMEWORK
     // Use file protection on this platform
     return _NSOpenFileDescriptor_Protected(path, Int(flags), options, 0o666)
+#elseif os(Windows)
+    var fd: CInt = 0
+    _ = _sopen_s(&fd, path, flags, _SH_DENYNO, _S_IREAD | _S_IWRITE)
+    return fd
 #else
     return open(path, flags, 0o666)
 #endif