Enable Node level caching in create_react_agent

[MrCsabaToth]

Node level caching is a relatively new feature (announced 05/16/2025 https://langchain-ai.github.io/langgraph/concepts/low_level/#node-caching), however currently only the graph compile and the add_node takes it as an optional parameter.
Since all of this is under the hood of the ReAct agent, we simply just have to add it as an optional parameter (like the checkpointer and the store) to the create_react_agent

langgraph/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py

Line 241 in 0a8f54c

def create_react_agent(

and then pass that down to the compile. The API could be more sophisticated in a next step (ttl and bells and whistles).

[MrCsabaToth]

Note, that this is not prompt caching #2900 even though that could be nice as well