box_metadata_template_get_by_key_tool doesn't work

[yaiki2514]

It seems to get the metadata template by 'NAME'. This should be by key.

async def box_metadata_template_get_by_key_tool(
    ctx: Context, template_name: str
) -> dict:
    """
    Retrieve a metadata template by its key.

    Args:
        ctx (Context): The context object containing the request and lifespan context.
        template_key (str): The key of the metadata template to retrieve.

    Returns:
        dict: The metadata template associated with the provided key.
    """
    box_client = get_box_client(ctx)
    return box_metadata_template_get_by_key(box_client, template_name <- this one)