fix migration

contracts/migrations/0068_contract_after_approval_nastenka_notice_id.py

+# Generated by Django 4.1.4 on 2023-07-18 06:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contracts', '0067_alter_contractee_options_alter_signee_options'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='contract',
+            name='after_approval_nastenka_notice_id',
+            field=models.UUIDField(blank=True, null=True, verbose_name='ID oznámení o schválení / vrácení v Nástěnce'),
+        ),
+    ]