Update pre_build.py

pre_build.py

@@ -47,6 +47,8 @@ def main():
     print("Starting pre-build setup for Hugging Face Spaces...")
 
     # Setup GroundingDINO
+    os.system("pip install -r requirements.txt")
+
     if not setup_groundingdino():
         print("Failed to setup GroundingDINO")
         sys.exit(1)