Update requirements.txt

requirements.txt

@@ -4,6 +4,4 @@ ffmpeg-python>=0.2.0,<1.0
 python-dotenv>=1.0.0,<2.0
 duckduckgo-search>=8.1.1,<9.0
 google-generativeai>=0.8.5,<1.0
-# If phi-agent is on GitHub:
-git+https://github.com/<owner>/phi-agent.git@main
-# Or remove/comment out phi-agent if not required
+phidata>=0.21.0,<1.0