Merge with #23 and update recommended swift version

Author: cmcgee1024

.swift-version

@@ -1 +1 @@
-main-snapshot-2025-04-12
+6.1.0

Sources/Subprocess/Configuration.swift

@@ -871,11 +871,7 @@ internal struct CreatedPipe {
     }
 
     internal init(closeWhenDone: Bool) throws {
-#if os(Windows)
         let pipe = try FileDescriptor.ssp_pipe()
-#else
-        let pipe = try FileDescriptor.pipe()
-#endif
 
         self.readFileDescriptor = .init(
             pipe.readEnd,

Sources/Subprocess/Platforms/Subprocess+Unix.swift

@@ -375,6 +375,13 @@ extension Configuration {
 
 // MARK: - FileDescriptor extensions
 extension FileDescriptor {
+    internal static func ssp_pipe() throws -> (
+        readEnd: FileDescriptor,
+        writeEnd: FileDescriptor
+    ) {
+        try pipe()
+    }
+
     internal static func openDevNull(
         withAcessMode mode: FileDescriptor.AccessMode
     ) throws -> FileDescriptor {