add migration

src/Migrations/Version20240321100100.php

+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20240321100100 extends AbstractMigration
+{
+    public function getDescription() : string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema) : void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE prestataire CHANGE iban iban LONGTEXT DEFAULT NULL COMMENT \'(DC2Type:personal_data)\'');
+    }
+
+    public function down(Schema $schema) : void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE prestataire CHANGE iban iban LONGTEXT CHARACTER SET utf8 DEFAULT NULL COLLATE `utf8_general_ci` COMMENT \'(DC2Type:personal_data)\'');
+    }
+}