change causing version from 2.4.4 to 2.4.5 for release

Author: koshishstha

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="causing",
-    version="2.4.4",
+    version="2.4.5",
     author="Dr. Holger Bartel",
     author_email="holger.bartel@realrate.ai",
     description="Causing: CAUSal INterpretation using Graphs",