Make Signal initializer public (#291)

Remove duplicated public Configuration initializer

Author: iCharlesHu

Sources/Subprocess/Configuration.swift

@@ -66,22 +66,6 @@ public struct Configuration: Sendable {
         self.platformOptions = platformOptions
     }
 
-    public init(
-        _ executable: Executable,
-        arguments: Arguments = [],
-        environment: Environment = .inherit,
-        workingDirectory: FilePath? = nil,
-        platformOptions: PlatformOptions = PlatformOptions()
-    ) {
-        self.init(
-            executable: executable,
-            arguments: arguments,
-            environment: environment,
-            workingDirectory: workingDirectory,
-            platformOptions: platformOptions
-        )
-    }
-
     internal func run<Result, Input: InputProtocol, Output: OutputProtocol, Error: OutputProtocol>(
         input: consuming CreatedPipe,
         as inputType: Input.Type,

Sources/Subprocess/Platforms/Subprocess+Unix.swift

@@ -37,7 +37,7 @@ public struct Signal: Hashable, Sendable {
     /// The underlying platform-specific value for the signal.
     public let rawValue: Int32
 
-    private init(rawValue: Int32) {
+    public init(rawValue: Int32) {
         self.rawValue = rawValue
     }
 

Tests/SubprocessTests/UnixTests.swift

@@ -259,7 +259,7 @@ extension SubprocessUnixTests {
                 platformOptions.createSession = true
                 platformOptions.teardownSequence = teardownSequence
                 let configuration = Configuration(
-                    .path("/bin/sh"),
+                    executable: .path("/bin/sh"),
                     // `exec` so the monitored child becomes `sleep` itself,
                     // which dies instantly on SIGTERM/SIGKILL.
                     arguments: ["-c", "echo ready; exec sleep 10"],