Merge pull request #1595 from TheMeier/bump_systemd

allow puppet-systemd version 7

Author: bastelfreak

metadata.json

@@ -18,7 +18,7 @@
     },
     {
       "name": "puppet/systemd",
-      "version_requirement": ">= 4.0.1 < 7.0.0"
+      "version_requirement": ">= 4.0.1 < 8.0.0"
     },
     {
       "name": "puppetlabs/concat",