Refactor build method argument name for clarity

Previously, the `build` method in the `MyPythonClass` class had an argument named `name`, which could be confusing. This commit changes the argument name to `my_custom_input` to improve readability and clarity.

src/backend/langflow/interface/importing/utils.py

@@ -181,7 +181,7 @@ class MyPythonClass:
             llm=llm, verbose=True, memory=ConversationBufferMemory()
         )
 
-    def build(self, name: str) -> ConversationChain:
+    def build(self, my_custom_input: str) -> ConversationChain:
         conversation = self.my_conversation()
         
         return conversation

src/backend/langflow/utils/constants.py

@@ -62,7 +62,7 @@ class MyPythonClass:
             llm=llm, verbose=True, memory=ConversationBufferMemory()
         )
 
-    def build(self, name: str) -> ConversationChain:
+    def build(self, my_custom_input: str) -> ConversationChain:
         conversation = self.my_conversation()
         
         return conversation