Do a test again by only override the kCGImagePropertyOrientation when the orientation is not UP

This may remove the strange warning log from CoreMedia system framework, see SDWebImage#3727

Author: dreampiggy

SDWebImage/Core/SDImageIOAnimatedCoder.m

@@ -847,7 +847,9 @@ - (NSData *)encodedDataWithFrames:(NSArray<SDImageFrame *> *)frames loopCount:(N
 #else
     CGImagePropertyOrientation exifOrientation = kCGImagePropertyOrientationUp;
 #endif
-    properties[(__bridge NSString *)kCGImagePropertyOrientation] = @(exifOrientation);
+    if (exifOrientation != kCGImagePropertyOrientationUp) {
+        properties[(__bridge NSString *)kCGImagePropertyOrientation] = @(exifOrientation);
+    }
     // Encoding Options
     double compressionQuality = 1;
     if (options[SDImageCoderEncodeCompressionQuality]) {