Fix memory leaks in core components

commit_hash:1f841204f9d5484c75e3f92c9a1faa0e127a58de

client/ios/DivKit/Animators/Animator.swift

@@ -143,6 +143,10 @@ final class ValueAnimator<I: ValueInterpolator>: Animator {
     isRunning = true
   }
 
+  deinit {
+      if isRunning { stop() }
+  }
+
   func stop() {
     item?.cancel()
     item = nil

client/ios/DivKit/Views/DivViewPreloader.swift

@@ -133,8 +133,12 @@ public final class DivViewPreloader {
     }
   }
 
-  func reset(cardId: DivCardID) {
+  public func reset(cardId: DivCardID) {
     blockProviders.removeValue(forKey: cardId)
   }
+
+  public func resetAll() {
+    blockProviders.removeAll()
+  }
 }
 #endif

client/ios/LayoutKit/LayoutKit/UI/Views/TabbedPages/TabContentsView.swift

@@ -7,7 +7,7 @@ final class TabContentsView: BlockView {
     static let animationDuration: TimeInterval = 0.2
   }
 
-  var delegate: TabContentsViewDelegate?
+  weak var delegate: TabContentsViewDelegate?
   weak var updatesDelegate: TabbedPagesViewModelDelegate?
   private(set) var selectedPageIndex: CGFloat = 0
   private(set) var model: TabContentsViewModel!