Revert "Update setup.py"

This reverts commit e6d9f16.

Author: Matt Sokoloff

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="labelbox",
-    version="2.4.9",
+    version="2.4.8",
     author="Labelbox",
     author_email="engineering@labelbox.com",
     description="Labelbox Python API",