ColonAfterSwitchCaseRector

Change deprecated semicolon to colon after switch case

 switch ($value) {
-    case 'baz';
+    case 'baz':
         echo 'baz';
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Php85\Rector\Switch_\ColonAfterSwitchCaseRector;

return RectorConfig::configure()
    ->withRules([
        ColonAfterSwitchCaseRector::class,
    ]);
SETS:  PHP 8.5