Fixes in the audio file deletion code

app.py

@@ -88,8 +88,8 @@ def notify_parent_of_exit():
     logger.error("The cleaner thread has exited. Check!!")
 
 def clean_up_audio_files(sender_id):
-    command = f"rm -f /tmp/{sender_id}*"
-    subprocess.run(command, text = True)
+    command = f"rm -f /tmp/*{sender_id}*"
+    subprocess.run(command, text = True, shell = True)
 
 # Your WhatsApp verification token
 VERIFY_TOKEN = os.getenv("WHATSAPP_VERIFY_TOKEN", "your_verification_token")