Merge pull request #756 from voxpupuli/systemd_update

update puppet-systemd upper bound to 8.0.0

Author: h-haaks

metadata.json

@@ -85,7 +85,7 @@
     },
     {
       "name": "puppet/systemd",
-      "version_requirement": ">= 5.1.0 < 7.0.0"
+      "version_requirement": ">= 5.1.0 < 8.0.0"
     },
     {
       "name": "puppet/zypprepo",