Update requirements.txt

requirements.txt

@@ -1,6 +1,4 @@
-streamlit>=1.20.0
-opencv-python-headless>=4.5.5
-pillow>=9.0.0
-ultralytics>=8.0.0
-requests>=2.27.0
-numpy>=1.21.0
+streamlit
+opencv-python-headless
+ultralytics
+Pillow