fix: make scheduled trigger test self-contained

- Remove dependency on permanent_workflow_for_triggers fixture
- Create and clean up our own temporary workflow and version
- Same pattern as pause/resume test to avoid 'workflow or version not found' errors
- Fixes test_create_update_scheduled_trigger failure

Author: JustAnotherNormalDev

tests/tests_integration/test_api/test_workflows.py

@@ -633,17 +633,35 @@ def test_trigger_cancel_retry_workflow(
 
 
 class TestWorkflowTriggers:
-    def test_create_update_scheduled_trigger(
-        self,
-        cognite_client: CogniteClient,
-        permanent_workflow_for_triggers: WorkflowVersion,
-    ) -> None:
-        version = permanent_workflow_for_triggers
+    def test_create_update_scheduled_trigger(self, cognite_client: CogniteClient) -> None:
+        # Create a temporary workflow for this test
+        workflow_external_id = f"integration_test-scheduled_trigger_workflow-{int(time.time())}"
+        workflow = WorkflowUpsert(external_id=workflow_external_id)
+        created_workflow = cognite_client.workflows.upsert(workflow)
+        
+        # Create a workflow version with definition
+        version = WorkflowVersionUpsert(
+            workflow_external_id=created_workflow.external_id,
+            version="1",
+            workflow_definition=WorkflowDefinitionUpsert(
+                tasks=[
+                    WorkflowTask(
+                        external_id=f"{created_workflow.external_id}-task1",
+                        parameters=CDFTaskParameters(
+                            resource_path="/timeseries",
+                            method="GET",
+                        ),
+                    ),
+                ],
+            ),
+        )
+        cognite_client.workflows.versions.upsert(version)
+
         existing = WorkflowTriggerUpsert(
             external_id=f"test_create_update_scheduled_trigger_{random_string(5)}",
             trigger_rule=WorkflowScheduledTriggerRule(cron_expression="* * * * *"),
-            workflow_external_id=version.workflow_external_id,
-            workflow_version=version.version,
+            workflow_external_id=created_workflow.external_id,
+            workflow_version="1",
             input={"a": 1, "b": 2},
             metadata={"test": "integration_schedule"},
         )
@@ -658,8 +676,16 @@ def test_create_update_scheduled_trigger(
             updated = cognite_client.workflows.triggers.upsert(update)
             assert updated.trigger_rule.dump() == new_rule.dump()
         finally:
+            # Clean up trigger and workflow
             if created is not None:
-                cognite_client.workflows.triggers.delete(created.external_id)
+                try:
+                    cognite_client.workflows.triggers.delete(created.external_id)
+                except Exception:
+                    pass
+            try:
+                cognite_client.workflows.delete(workflow_external_id)
+            except Exception:
+                pass
 
     @pytest.mark.skip("This test is temp. disabled, flaky, awaiting a more robust long-term solution. Task: DOGE-100")
     def test_create_update_delete_data_modeling_trigger(