[#1048] Fixed migrations

Author: vaszig

src/open_inwoner/openzaak/migrations/0006_auto_20230123_1518.py renamed to src/open_inwoner/openzaak/migrations/0006_auto_20230123_1619.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.2.15 on 2023-01-23 14:18
+# Generated by Django 3.2.15 on 2023-01-23 15:19
 
 from django.db import migrations, models
 import django_better_admin_arrayfield.models.fields
@@ -16,7 +16,7 @@ class Migration(migrations.Migration):
             name="allowed_file_extensions",
             field=django_better_admin_arrayfield.models.fields.ArrayField(
                 base_field=models.CharField(
-                    max_length=255, verbose_name="Allowed file extensions"
+                    max_length=8, verbose_name="Allowed file extensions"
                 ),
                 default=[
                     "pdf",