Bump package version to 1.5.8

Author: CamLamb

setup.py

@@ -27,7 +27,7 @@ def read(*rnames):
 
 setup(
     name="djangosaml2",
-    version="1.5.7",
+    version="1.5.8",
     description="pysaml2 integration for Django",
     long_description=read("README.md"),
     long_description_content_type="text/markdown",