Fix LRUAnimationCache to evict cached items

This bug fix ensures that items stored in `cacheMap` are also removed when an entry from `lruList` is removed.

lottie-swift/src/Public/AnimationCache/LRUAnimationCache.swift

@@ -44,7 +44,10 @@ public class LRUAnimationCache: AnimationCacheProvider {
  cacheMap[forKey] = animation
  lruList.append(forKey)
  if lruList.count > cacheSize {
- lruList.remove(at: 0)
+ let removed = lruList.remove(at: 0)
+ if removed != forKey {
+ cacheMap[removed] = nil
+ }
  }
  }