Switch from git to https url in .fixtures.yml

GitHub drop support for git:// url a while ago.

Author: smortex

.fixtures.yml

@@ -1,7 +1,7 @@
 fixtures:
   repositories:
-    "stdlib": "git://github.com/puppetlabs/puppetlabs-stdlib.git"
-    "apt": "git://github.com/puppetlabs/puppetlabs-apt.git"
+    "stdlib": "https://github.com/puppetlabs/puppetlabs-stdlib.git"
+    "apt": "https://github.com/puppetlabs/puppetlabs-apt.git"
     "systemd": "https://github.com/voxpupuli/puppet-systemd.git"
     "zypprepo": "https://github.com/voxpupuli/puppet-zypprepo.git"
     yumrepo_core: