Fix unable to upload telegram stickers

src/sticker_convert/uploaders/upload_telegram.py

@@ -206,7 +206,7 @@ async def upload_pack(
                 )
 
                 if sticker_set is None:
-                    if count < 50 and (
+                    if count < 50 and count != len(stickers) - 1 and (
                         sticker_format_prev is None
                         or sticker_format_prev == sticker_format
                     ):