Standardize gunicorn package references across RHEL versions

Author: ValdrinBottomline

manifests/params.pp

@@ -28,9 +28,8 @@
 
   $gunicorn_package_name = $facts['os']['family'] ? {
     'RedHat' => $facts['os']['release']['major'] ? {
-      '9' => 'python3-gunicorn',
-      '8' => 'python3-gunicorn',
-      default => 'python-gunicorn',
+      '7'     => 'python-gunicorn',
+      default => 'python3-gunicorn',
     },
     default  => 'gunicorn',
   }