Fix migration

db/migrations/2022_04_07_000000_rename_groups.php

@@ -22,7 +22,7 @@ class RenameGroups extends Migration
     {
         $connection = $this->schema->getConnection();
 
-        foreach (GROUPS as [$id, $old, $new]) {
+        foreach (self::GROUPS as [$id, $old, $new]) {
             $connection->update(
                 'UPDATE `Groups` SET `Name` = ? WHERE `UID` = ?',
                 [$new, $id]
@@ -37,7 +37,7 @@ class RenameGroups extends Migration
     {
         $connection = $this->schema->getConnection();
 
-        foreach (GROUPS as [$id, $old, $new]) {
+        foreach (self::GROUPS as [$id, $old, $new]) {
             $connection->update(
                 'UPDATE `Groups` SET `Name` = ? WHERE `UID` = ?',
                 [$old, $id]