Drop EoL Puppet 5 support; Add Puppet 7 support

Author: bastelfreak

.fixtures.yml

@@ -4,6 +4,4 @@ fixtures:
     stdlib: https://github.com/puppetlabs/puppetlabs-stdlib.git
     concat: https://github.com/puppetlabs/puppetlabs-concat.git
     epel: https://github.com/voxpupuli/puppet-epel.git
-    yumrepo_core:
-      repo: https://github.com/puppetlabs/puppetlabs-yumrepo_core.git
-      puppet_version: ">= 6.0.0"
+    yumrepo_core: https://github.com/puppetlabs/puppetlabs-yumrepo_core.git

metadata.json

@@ -89,7 +89,7 @@
   "requirements": [
     {
       "name": "puppet",
-      "version_requirement": ">= 5.5.8 < 7.0.0"
+      "version_requirement": ">= 6.1.0 < 8.0.0"
     }
   ],
   "tags": [