Fixes #22569: Ensures that Script Run OpenAPI operation is present

Does two things:
1. Adds a regression test to ensure that the `extras_scripts_run`
   operation is always present in contrib/openapi.json. This has
   regressed at least once since original implementation, so I wanted to
   make sure we catch it quickly in the future.
2. Overrides the Django `CACHES` setting for the OpenAPISchemaTestCase,
   which contains the new test, so that caching of the schema is
   disabled. This caused problems by masking whether or not the
   regression test (and other existing tests) were failing/succeeding in
   response to changes or not.

netbox/core/tests/test_openapi_schema.py

@@ -5,7 +5,7 @@ Refs: #20638
 """
 import json
 
-from django.test import SimpleTestCase, TestCase
+from django.test import SimpleTestCase, TestCase, override_settings
 
 from core.api.schema import FixSerializedPKRelatedField, NetBoxAutoSchema
 from dcim.api.serializers import SiteSerializer
@@ -15,6 +15,11 @@ from netbox.api.fields import SerializedPKRelatedField
 from netbox.api.serializers import BulkOperationErrorSerializer
 
 
+@override_settings(CACHES={
+    'default': {
+        'BACKEND': 'django.core.cache.backends.dummy.DummyCache'
+    }
+})
 class OpenAPISchemaTestCase(TestCase):
     """Tests for OpenAPI schema generation."""
 
@@ -331,6 +336,22 @@ class OpenAPISchemaTestCase(TestCase):
             with self.subTest(component=component, field=field):
                 self.assertEqual(components[component]['properties'][field]['items']['type'], 'integer')
 
+    def test_script_run_operation_exists(self):
+        """
+        Encodes presence of extras_scripts_run operation in schema as expected.
+
+        Refs: #22569
+        """
+        paths = self.schema['paths']
+        resource_path = paths['/api/extras/scripts/{id}/']
+        self.assertIn('post', resource_path)
+
+        run_operation = resource_path['post']
+
+        self.assertEqual(run_operation['operationId'], 'extras_scripts_run')
+        self.assertEqual(len(run_operation['responses']), 1)
+        self.assertIn('200', run_operation['responses'])
+
 
 class WritableFieldRebuildTestCase(TestCase):
     """