Test support states in test-dates because it's there

Author: markrandall

bin/test-dates.php

@@ -35,4 +35,10 @@ function assertEqual(mixed $new, mixed $old, string $message) {
         get_branch_security_eol_date($release->label)?->format('c'),
         $label . 'security eol dates do not match'
     );
+
+    assertEqual(
+            $release->supportState->value,
+            get_branch_support_state($release->label),
+            $label . 'support states do not match'
+    );
 }