fix: 修复测试系统用户可连接性问题

apps/ops/migrations/0020_adhoc_run_system_user.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.1.6 on 2021-07-14 08:44
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('assets', '0076_delete_assetuser'),
+        ('ops', '0019_adhocexecution_celery_task_id'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='adhoc',
+            name='run_system_user',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='assets.systemuser'),
+        ),
+    ]