older jwt dependency blocking aptible-cli install

I have a dependency mismatch because of the out-of-date jwt dependency:

```
Bundler could not find compatible versions for gem "jwt":
In Gemfile:
omniauth-snowflake (>= 0) ruby depends on
omniauth-oauth2 (~> 1.2) ruby depends on
oauth2 (~> 1.0) ruby depends on
jwt (~> 1.0) ruby

aptible-cli (>= 0) ruby depends on
aptible-api (>= 0.5.3) ruby depends on
aptible-resource (>= 0.2.1) ruby depends on
fridge (>= 0) ruby depends on
jwt (0.1.13)
```

Are you okay w/ bumping that up?

Thanks!,
Eliot

Inspect the dependency declaration for fridge and run Bundler's dependency resolution to reproduce the jwt conflict shown in the issue. Done means updating the jwt requirement so aptible-cli can install alongside the omniauth dependency without the reported version mismatch.

Written by the indexing model from the issue text.