Fix trailing whitespaces (#3205)

See https://github.com/pre-commit/pre-commit-hooks?tab=readme-ov-file#trailing-whitespace

platform/darwin/src/MLNOfflinePack.mm

@@ -93,7 +93,7 @@ private:
     const mbgl::OfflineRegionDefinition &regionDefinition = _mbglOfflineRegion->getDefinition();
     MLNAssert([MLNTilePyramidOfflineRegion conformsToProtocol:@protocol(MLNOfflineRegion_Private)], @"MLNTilePyramidOfflineRegion should conform to MLNOfflineRegion_Private.");
     MLNAssert([MLNShapeOfflineRegion conformsToProtocol:@protocol(MLNOfflineRegion_Private)], @"MLNShapeOfflineRegion should conform to MLNOfflineRegion_Private.");
-    
+
     return  std::visit(mbgl::overloaded{
                                    [&] (const mbgl::OfflineTilePyramidRegionDefinition def){
                                        return (id <MLNOfflineRegion>)[[MLNTilePyramidOfflineRegion alloc] initWithOfflineRegionDefinition:def];
@@ -113,10 +113,10 @@ private:
 
 - (void)setContext:(NSData *)context completionHandler:(void (^_Nullable)(NSError * _Nullable error))completion {
     MLNAssertOfflinePackIsValid();
-    
+
     mbgl::OfflineRegionMetadata metadata(context.length);
     [context getBytes:&metadata[0] length:metadata.size()];
-    
+
     [self willChangeValueForKey:@"context"];
     __weak MLNOfflinePack *weakSelf = self;
     _mbglDatabaseFileSource->updateOfflineMetadata(_mbglOfflineRegion->getID(), metadata, [&, completion, weakSelf](mbgl::expected<mbgl::OfflineRegionMetadata, std::exception_ptr> mbglOfflineRegionMetadata) {
@@ -262,7 +262,7 @@ private:
 - (void)didReceiveError:(NSError *)error {
     MLNLogError(@"Error: %@", error.localizedDescription);
     MLNLogInfo(@"Notifying about pack error.");
-    
+
     NSDictionary *userInfo = @{ MLNOfflinePackUserInfoKeyError: error };
     NSNotificationCenter *noteCenter = [NSNotificationCenter defaultCenter];
     [noteCenter postNotificationName:MLNOfflinePackErrorNotification