Actually set Elevenlabs API key from environment variable

narrator.py

@@ -5,10 +5,11 @@ import json
 import time
 import simpleaudio as sa
 import errno
-from elevenlabs import generate, play, voices
+from elevenlabs import generate, play, set_api_key, voices
 
 client = OpenAI()
 
+set_api_key(os.environ.get("ELEVENLABS_API_KEY"))
 
 def encode_image(image_path):
     while True: