fix: fixing ProxyJump none and ProxyJump user@host

[StarAurryon]

This PR aims at adding proper support for .ssh/config file following features that are not currently supported :

• ProxyJump none
• ProxyJump user@host

Summary by CodeRabbit

• Refactor
  • Enhanced SSH connection handling by separating host and user details for proxy jump configurations, ensuring more reliable SSH connectivity.
• Tests
  • Added tests to validate the new structured parsing of proxy jump strings, confirming expected behavior in SSH configuration.

[dmacvicar]

I'd like to deprecate the current ssh transport instead of adding support to more config options, in favour of the transport based on the native ssh command.

Is there a way you could help us testing those use cases will work in the new transport instead?

[StarAurryon]

Hello,

Sorry for the late reply. Yes of course !
It is always better to be lazy and don't have to maintain things on my own.