🚧 chore(types.py): add OutputParserVertex class to support output parsing functionality

The OutputParserVertex class is added to the types.py file. This class extends the Vertex class and is used to represent a vertex in the graph that performs output parsing. It takes a data parameter of type Dict in its constructor and calls the super constructor with the data and a base_type of "output_parsers". This change is made to support the implementation of output parsing functionality in the graph.

src/backend/langflow/graph/vertex/types.py

@@ -194,3 +194,8 @@ class PromptVertex(Vertex):
 
             self._build()
         return self._built_object
+
+
+class OutputParserVertex(Vertex):
+    def __init__(self, data: Dict):
+        super().__init__(data, base_type="output_parsers")