feat(tor): add initial tor support support

[oleonardolima]

It bumps the fedimint version to this commit https://github.com/fedimint/fedimint/tree/54acaa63a45e6bd14e872cdaaf020e8c100d6b33, as Tor MVP support has landed on master, but hasn't been released yet (planned for 0.5.x).

As Harbor mainly uses the Client, we basically need to specifically use the Connector::Tor as an option, through the .with_tor_connector() auxiliary method.

[oleonardolima]

@benthecarman @futurepaul I think we could make use of shadow or chutney for testing, but I still need to grasp more about Harbor's project structure and testing.

I also wonder about validations that we could implement, and make use of compile_error! & co macros to make sure it's using the proper connector, and really annoy any user that changes that to clearnet for example, let me know what you think.

[benthecarman]

is there a reason you changed the nightly version of rust? seems likes its failing to get that version

seems that is needed for the tor stuff

[oleonardolima]

is there a reason you changed the nightly version of rust? seems likes its failing to get that version

seems that is needed for the tor stuff

IIRC I was trying to fix the Nix environment, and there was some error related to it and the rust version being used.