Explicitly associate Debian and PHP versions

Anything not explicit is a problem, so raise an error in this case.

Same for Ubuntu.

Author: smortex

manifests/globals.pp

@@ -28,13 +28,15 @@
   $default_php_version = $facts['os']['name'] ? {
     'Debian' => $facts['os']['release']['major'] ? {
       '9'     => '7.0',
+      '10'    => '7.3',
       '11'    => '7.4',
-      default => '7.3',
+      default => fail("Unsupported Debian release: ${fact('os.release.major')}"),
     },
     'Ubuntu' => $facts['os']['release']['major'] ? {
-      '20.04' => '7.4',
       '16.04' => '7.0',
-      default => '7.2',
+      '18.04' => '7.2',
+      '20.04' => '7.4',
+      default => fail("Unsupported Ubuntu release: ${fact('os.release.major')}"),
     },
     default => '5.x',
   }