make sure the id is a str

cache has the ids as strings because json cant store keys in a int variable

alfetcher/al_fetcher.py

@@ -626,6 +626,7 @@ def al_to_mal_id(al_id):
     return None
 
 def update_entry(anime_id, progress, al_token=None):
+    anime_id = str(anime_id)
     progress = int(progress)
     total_eps = get_anime_info(anime_id, al_token=al_token)[anime_id]['total_eps']
     query = """