Merge pull request #352 from Wtoto/fix/memoryleak

fix: memoryleak

Author: dreampiggy

SDWebImageSwiftUI/Classes/ImageViewWrapper.swift

@@ -73,15 +73,21 @@ public class AnimatedImageViewWrapper : PlatformView {
     public override init(frame frameRect: CGRect) {
         super.init(frame: frameRect)
         addSubview(wrapped)
-        observation = observe(\.wrapped.image, options: [.new]) { _, _ in
+        observation = observe(\.wrapped.image, options: [.new]) { [weak self] _, _ in
+            guard let self = self else {
+                return
+            }
             self.invalidateIntrinsicContentSize()
         }
     }
 
     public required init?(coder: NSCoder) {
         super.init(coder: coder)
         addSubview(wrapped)
-        observation = observe(\.wrapped.image, options: [.new]) { _, _ in
+        observation = observe(\.wrapped.image, options: [.new]) { [weak self] _, _ in
+            guard let self = self else {
+                return
+            }
             self.invalidateIntrinsicContentSize()
         }
     }