align timeout for all platforms (#834)

Signed-off-by: michael_crosby <michael_crosby@apple.com>

Sources/Containerization/LinuxProcess.swift

@@ -125,14 +125,8 @@ public final class LinuxProcess: Sendable {
 
 extension LinuxProcess {
     func setupIO(listeners: [VsockListener?]) async throws -> [FileHandle?] {
-        // Nested virtualization (x86_64 CI) is dramatically slower to bring the
-        // guest vsock listeners up than native arm64 virt, so allow a longer
-        // window there while keeping the arm64 path tight.
-        #if arch(x86_64)
         let ioTimeout: UInt32 = 30
-        #else
-        let ioTimeout: UInt32 = 3
-        #endif
+
         let handles = try await Timeout.run(seconds: ioTimeout) {
             try await withThrowingTaskGroup(of: (Int, FileHandle?).self) { group in
                 var results = [FileHandle?](repeating: nil, count: 3)