fix move command

bot.py

@@ -4,8 +4,8 @@ from discord.utils import setup_logging
 import argparse
 import discord
 import logging
-import os
 import re
+import shutil
 import subprocess as sp
 
 discord.utils.setup_logging()
@@ -32,7 +32,7 @@ def _update_db():
             for line in f:
                 games.append(line.strip())
         sp.run(["./index.py", "-o", _DB] + games)
-        os.rename(_DB, _DB_DEST)
+        shutil.move(_DB, _DB_DEST)
     except:
         _log.exception(f"failed updating db")