nix: bump internal version to 4.1.0

pkgs/python-packages.nix

@@ -230,7 +230,7 b''
     };
   };
   rhodecode-vcsserver = super.buildPythonPackage {
-    name = "rhodecode-vcsserver-4.0.0";
+    name = "rhodecode-vcsserver-4.1.0";
     buildInputs = with self; [mock pytest WebTest];
     doCheck = true;
     propagatedBuildInputs = with self; [configobj dulwich hgsubversion infrae.cache mercurial msgpack-python pyramid Pyro4 simplejson subprocess32 waitress WebOb];