Made _asubprocess_run a staticmethod

Author: Taaku18

cogs/plugins.py

@@ -29,7 +29,8 @@ def __init__(self, bot: Bot):
         self.bot = bot
         self.bot.loop.create_task(self.download_initial_plugins())
 
-    def _asubprocess_run(self, cmd):
+    @staticmethod
+    def _asubprocess_run(cmd):
         return subprocess.run(cmd, shell=True, check=True,
                               capture_output=True)