[tools] Update version to v3.5.1

Author: mostafa

setup.py

@@ -16,7 +16,7 @@
 setup(
     name="django_saml2_auth",
 
-    version="3.5.0",
+    version="3.5.1",
 
     description="Django SAML2 Authentication Made Easy.",
     long_description=long_description,