Fix animated images missing from offscreen render (#50187)

Summary:
Pull Request resolved: #50187

D70668516 broke some SSTs, where asset that previously was black, showed up as clear.

I was assuming that was because we fixed a separate bug where assets could erroneously show as black layer, but these tests were actually just using a black asset.

Real bug here, is that the change led to only setting image when we have a displayLink, ie showing on screen, where before, we set image (implicitly at first frame) as layer content.

This change fixes that behavior, so first frame is rendered as part of off-screen view rendering, for images considered animatable.

Changelog:
[iOS][Fixed] - Fix animated images missing from offscreen render

Reviewed By: cipolleschi

Differential Revision: D71590856

fbshipit-source-id: f5da690b27f2da0f6979f25ece031ff0d418cca6

Author: NickGerleman

packages/react-native/Libraries/Image/RCTUIImageViewAnimated.mm

@@ -123,11 +123,9 @@ - (void)setImage:(UIImage *)image
     if ([self paused]) {
       [self start];
     }
-
-    [self.layer setNeedsDisplay];
-  } else {
-    super.image = image;
   }
+
+  super.image = image;
 }
 
 #pragma mark - Private