Address more ignored pytest warnings, co-authored with Opus 4.6 (#16298)

* Address more ignored pytest warnings

* Fix what we can with CI results

* Add new migration file

awx/main/migrations/0205_add_ordering_to_instancegroup_and_workflow_nodes.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.2.8 on 2026-02-20 03:39
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('main', '0204_squashed_deletions'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='instancegroup',
+            options={
+                'default_permissions': ('change', 'delete', 'view'),
+                'ordering': ('pk',),
+                'permissions': [('use_instancegroup', 'Can use instance group in a preference list of a resource')],
+            },
+        ),
+        migrations.AlterModelOptions(
+            name='workflowjobnode',
+            options={'ordering': ('pk',)},
+        ),
+        migrations.AlterModelOptions(
+            name='workflowjobtemplatenode',
+            options={'ordering': ('pk',)},
+        ),
+    ]

awx/main/models/ha.py

@@ -485,6 +485,7 @@ class InstanceGroup(HasPolicyEditsMixin, BaseModel, RelatedJobsMixin, ResourceMi
 
     class Meta:
         app_label = 'main'
+        ordering = ('pk',)
         permissions = [('use_instancegroup', 'Can use instance group in a preference list of a resource')]
         # Since this has no direct organization field only superuser can add, so remove add permission
         default_permissions = ('change', 'delete', 'view')

awx/main/models/workflow.py

@@ -200,6 +200,7 @@ class WorkflowJobTemplateNode(WorkflowNodeBase):
         indexes = [
             models.Index(fields=['identifier']),
         ]
+        ordering = ('pk',)
 
     def get_absolute_url(self, request=None):
         return reverse('api:workflow_job_template_node_detail', kwargs={'pk': self.pk}, request=request)
@@ -286,6 +287,7 @@ class WorkflowJobNode(WorkflowNodeBase):
             models.Index(fields=["identifier", "workflow_job"]),
             models.Index(fields=['identifier']),
         ]
+        ordering = ('pk',)
 
     @property
     def event_processing_finished(self):