Support CI about incubator-horaedb-client-py

[waynexia]

Opened apache/incubator-horaedb#103 for this.

[messense]

Adding style checks are easy. I was thinking more about adding CI to build Python wheels, I can do this along the way.

I do think the dependency issue I mentioned should be addressed first, otherwise CI could be terribly slow.

[ShiKaiWi]

@messense Would you like to take this task? And feel free to talk with us here or on slack if anything is unclear.

[waynexia]

That all-in-one dependent delegate brings lots of unnecessary deps to other crates like this client. I've suffered from it already 😷