Set delegate of updater

Author: intitni

Core/Sources/UpdateChecker/UpdateChecker.swift

@@ -5,6 +5,7 @@ import Sparkle
 public final class UpdateChecker {
     let updater: SPUUpdater
     let hostBundleFound: Bool
+    let delegate = UpdaterDelegate()
 
     public init(hostBundle: Bundle?) {
         if hostBundle == nil {
@@ -17,7 +18,7 @@ public final class UpdateChecker {
             hostBundle: hostBundle ?? Bundle.main,
             applicationBundle: Bundle.main,
             userDriver: SPUStandardUserDriver(hostBundle: hostBundle ?? Bundle.main, delegate: nil),
-            delegate: nil
+            delegate: delegate
         )
         do {
             try updater.start()