Fix problem with loading workflow paths

Author: agohr

app/math_tutor.py

@@ -59,7 +59,7 @@ def process_input(self, submission: str, exemplary_solution: str, temperature: f
             if "workflow" in exemplary_solution_data:
                 workflow_path = exemplary_solution_data["workflow"]
                 # complete path to absolute path
-                workflow_full_path = os.path.join(os.path.dirname(self.config_path), workflow_path)
+                workflow_full_path = workflow_path
                 print(f"Loading workflow from: {workflow_full_path}")
                 with open(workflow_full_path, 'r') as f:
                     workflow_config = json.load(f)