Add missing migration for webhooks (#5078)

* Add missing migration

* Change field type

cvat/apps/webhooks/migrations/0003_alter_webhookdelivery_status_code.py

+# Generated by Django 3.2.15 on 2022-10-11 09:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webhooks', '0002_alter_webhookdelivery_status_code'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='webhookdelivery',
+            name='status_code',
+            field=models.PositiveIntegerField(default=None, null=True),
+        ),
+    ]

cvat/apps/webhooks/models.py

@@ -3,7 +3,6 @@
 # SPDX-License-Identifier: MIT
 
 from enum import Enum
-from http import HTTPStatus
 
 from django.contrib.auth.models import User
 from django.db import models
@@ -89,9 +88,7 @@ class WebhookDelivery(models.Model):
     )
     event = models.CharField(max_length=64)
 
-    status_code = models.IntegerField(
-        choices=tuple((x.name, x.value) for x in HTTPStatus), null=True, default=None
-    )
+    status_code = models.PositiveIntegerField(null=True, default=None)
     redelivery = models.BooleanField(default=False)
 
     created_date = models.DateTimeField(auto_now_add=True)