fix: initialise mismatch_action before try block to fix false-positive unused variable warning

Author: fgogolli

src/orb/infrastructure/template/configuration_manager.py

@@ -586,14 +586,14 @@ def _validate_basic_template_structure(
             template.metadata.get("scheduler_type") if isinstance(template.metadata, dict) else None
         )
         if template_scheduler_type is not None:
+            active_scheduler_type = None
+            mismatch_action = "warn"
             try:
                 active_scheduler_type = self.config_manager.app_config.scheduler.type
                 mismatch_action = getattr(
                     self.config_manager.app_config.scheduler, "on_scheduler_mismatch", "warn"
                 )
             except Exception as e:
-                active_scheduler_type = None
-                mismatch_action = "warn"
                 self.logger.debug("Could not read scheduler config for mismatch check: %s", e)
 
             if active_scheduler_type and template_scheduler_type != active_scheduler_type: