Function: core_memory_update
This tool belongs to the memory suite, which provides APIs to interact with a key-value based memory system. Tool description: Update an entry in the core memory.
Parameters: vec_id: type: integer
description: The ID of the entry to be updated.
new_text: type: string
description: The new text to replace the old text. 
Required parameters: vec_id, new_text
Response: status: type: string
description: Status of the operation.