Update app.py

app.py

@@ -2,7 +2,7 @@ import streamlit as st
 import requests
 
 API_URL = "https://api-inference.huggingface.co/models/ehcalabres/wav2vec2-lg-xlsr-en-speech-emotion-recognition"
-headers = {"Authorization": "Bearer hf_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"}
+headers = {"Authorization": f"Bearer {os.getenv('HF_API_TOKEN')}"}
 
 emotion_to_neg_rate = {
     'angry': 70.0,