Update requirements.txt

requirements.txt

@@ -1,6 +1,8 @@
-# audioop-lts restores the audioop module removed in Python 3.13,
-# which pydub (a gradio dependency) needs.
+# audioop-lts restores the audioop module removed in Python 3.13
 audioop-lts>=0.2.2
 gTTS>=2.5.0
+# gradio 4.40.0 (injected by HF Spaces) needs HfFolder which was removed in
+# huggingface_hub 1.0 — pin to the last compatible series.
+huggingface-hub>=0.30,<1.0
 # Uncomment below + upload a .gguf model file to enable AI tips:
 # llama-cpp-python>=0.2.77