fix: refactoring of fetch_node qixed error

Author: vedovati-matteo

scrapegraphai/nodes/fetch_node.py

@@ -120,13 +120,12 @@ def execute(self, state):
         if input_type in handlers:
             return handlers[input_type](state, input_type, source)
         elif self.input == "pdf_dir":
-            pass
+            return state
         elif not source.startswith("http"):
             return self.handle_local_source(state, source)
         else:
             return self.handle_web_source(state, source)
 
-    
     def handle_directory(self, state, input_type, source):
         """
         Handles the directory by compressing the source document and updating the state.