fix: check for python3_version

- check for python3 version before attempting to setup node_lookup

site/profiles/manifests/helpers/node_lookup.pp

@@ -12,6 +12,13 @@ class profiles::helpers::node_lookup (
   Array[String[1]]      $packages = ['requests'],
 ){
 
+  if $::facts['python3_version'] {
+
+    $python_version = $version ? {
+      'system' => $::facts['python3_version'],
+      default  => $version,
+    }
+
     # ensure the base_path exists
     file { $base_path:
       ensure => directory,
@@ -19,10 +26,11 @@ class profiles::helpers::node_lookup (
       owner  => $owner,
       group  => $group,
     }
+
     # create a venv
     python::pyvenv { $venv_path :
       ensure     => present,
-    version    => $version,
+      version    => $python_version,
       systempkgs => $systempkgs,
       venv_dir   => $venv_path,
       owner      => $owner,
@@ -54,3 +62,4 @@ class profiles::helpers::node_lookup (
       require => File["${base_path}/${script_name}"],
     }
   }
+}