Expand valid versions to include 2019.7 and 2019.8

Author: reidmv

functions/validate_version.pp

@@ -1,16 +1,16 @@
 function peadm::validate_version(
   String $version,
 ) {
-  $supported = ($version =~ SemVerRange('2019.8.0'))
+  $supported = ($version =~ SemVerRange('>= 2019.7.0 < 2019.9.0'))
 
   unless $supported {
     fail(@("REASON"/L))
       This version of the puppetlabs-peadm module does not support PE ${version}.
 
-      For PE versions older than 2019.8, please use version 1.x of the \
+      For PE versions older than 2019.7, please use version 1.x of the \
       puppetlabs-peadm module.
 
-      For PE versions newer than 2019.8, check to see if a new version of peadm \
+      For PE versions newer than 2019.8.x, check to see if a new version of peadm \
       exists which supports that version of PE.
 
       | REASON