Adding GitHub actions

[peter279k]

To make upcoming changes tested automatically, I think it can consider integrating the CI service.

I also recommend the GitHub action. If this issue is accepted, I will work on that :).

[AmraniCh]

Hey, thanks for opening this issue and for your suggestion to improve this package.

The library include only the integration tests, which deals with a real FTP server, so for testing you need an FTP account to be able to run the tests as intended.

[peter279k]

Hi, thanks for your reply. I think we can consider setting up fake FTP server and do integration tests during the GitHub action running, And it should be worked for the tests.

If above recommendations are approved, I can work on that :).

[AmraniCh]

That sound good, FTP servers may have different implementation of the protocol specification, a fake FTP server is a good idea actually to put like a standard server that fully respect the spec (RFC 959 and extensions).

I approve your recommendation, go a head.