feat(cli): introduce new output formatter

[raventid]

This PR introduces few things:

• output-format CLI param which controls the output format (so far it support plain/json/toml, but I might extend it in the future)
• slight change of how we pass the context to execute command, I want to wrap Client in the Context to be more flexible on passing whatever params I want to the nested calls
• updates rustc version and other dependencies

[aleksuss]

@raventid fix the conflicts please.