Make SagemakerOrchestratorSettings.processor_tags optional (#3773)

* Make SagemakerOrchestratorSettings.processor_tags optional

* Exclude unset config attributes

Author: schustmi

src/zenml/integrations/aws/flavors/sagemaker_orchestrator_flavor.py

@@ -130,7 +130,7 @@ class SagemakerOrchestratorSettings(BaseSettings):
     )
 
     processor_role: Optional[str] = None
-    processor_tags: Dict[str, str] = {}
+    processor_tags: Optional[Dict[str, str]] = None
     _deprecation_validator = deprecation_utils.deprecate_pydantic_attributes(
         ("processor_role", "execution_role"), ("processor_tags", "tags")
     )

src/zenml/stack/stack_component.py

@@ -527,7 +527,7 @@ def get_settings(
         )
 
         # Use the current config as a base
-        settings_dict = self.config.model_dump()
+        settings_dict = self.config.model_dump(exclude_unset=True)
 
         if key in all_settings:
             settings_dict.update(dict(all_settings[key]))