fix: bad authlib version

backend/requirements.txt

@@ -52,7 +52,7 @@ rank-bm25==0.2.2
 faster-whisper==1.0.2
 
 PyJWT[crypto]==2.8.0
-authlib==1.3.2
+authlib==1.3.0
 
 black==24.4.2
 langfuse==2.33.0