Python: fix installation of pepper by using http

Change-Id: I524aa3a9f93f1973b85dace8426539171badde1b
diff --git a/src/com/mirantis/mk/Python.groovy b/src/com/mirantis/mk/Python.groovy
index 3a2558e..159ab54 100644
--- a/src/com/mirantis/mk/Python.groovy
+++ b/src/com/mirantis/mk/Python.groovy
@@ -296,7 +296,7 @@
 
     // virtualenv setup
     setupVirtualenv(path, 'python2')
-    runVirtualenvCommand(path, "pip install git+git://github.com/saltstack/pepper.git")
+    runVirtualenvCommand(path, "pip install git+https://github.com/saltstack/pepper.git")
 
     // pepperrc creation
     rcFile = "${path}/pepperrc"