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',)},
+        ),
+    ]