Update Swiftnio to 2.81.0 (#14)

Author: johnnzhou

Package.swift

@@ -16,7 +16,7 @@ let package = Package(
     ],
     dependencies: [
         // Dependencies declare other packages that this package depends on.
-        .package(url: "https://github.com/apple/swift-nio.git", from: "2.73.0"),
+        .package(url: "https://github.com/apple/swift-nio.git", from: "2.81.0"),
         .package(url: "https://github.com/apple/swift-log.git", from: "1.5.3"),
         .package(url: "https://github.com/apple/swift-nio-ssl.git", from: "2.25.0"),
         .package(url: "https://github.com/apple/swift-collections.git", from: "1.1.1")

Sources/LCLPing/Configuration.swift

@@ -13,7 +13,8 @@
 import Foundation
 
 /// Type of reachability test that `LCLPing` supports
-public enum PingType {
+public enum PingType: String, CaseIterable, Identifiable {
+    public var id: Self { self }
     /// Perform reachability ping test through the ICMP protocol.
     case icmp