Update rpyc

[haoyang0517]

Allow public attributes

[hardikp]

Thanks! I will check out the allow_public_attrs option once (hopefully tomorrow) before merging this.

[hardikp]

Hi @haoyang0517, I went through the documentation. More specifically, I read this document - https://github.com/tomerfiliba/rpyc/blob/645cd5b34b2aae15f8f7204389c33eb366e7584b/docs/docs/security.rst

However, I am not convinced if it's a good choice to add allow_public_attrs: True config. Would you mind highlighting when it makes sense to add this?