Use updated Faraday syntax

[markedmondson]

Updates the authorization syntax for Faraday v1.x as per https://lostisland.github.io/faraday/middleware/authentication to remove the deprecation warning:

WARNING: `Faraday::Connection#authorization` is deprecated; it will be removed in version 2.0.
While initializing your connection, use `#request(:authorization, ...)` instead.
See https://lostisland.github.io/faraday/middleware/authentication for more usage info.

Fixes #49

[technicalpickles]

Do you know what version introduces the new syntax? We'd need to make sure the faraday dependency reflects that.

[standingwave]

Do you know what version introduces the new syntax? We'd need to make sure the faraday dependency reflects that.

Hello there! Any chance of getting this merged so this gem can co-habitate with other tools that use Faraday 2.0+?

I did a bit of quick research and it looks like the deprecation of Faraday::Connection#authorization happened with Faraday 1.7.1 here lostisland/faraday#1306.

If I'm understanding your question correctly, the new syntax is actually old, they just got rid of some helper methods which made the interface more confusing.

[lparry]

Hello there! Any chance of getting this merged so this gem can co-habitate with other tools that use Faraday 2.0+?

@standingwave Do you have a trick for getting around the faraday ~> 1.0 gemspec version restriction to use this in a bundle with something requiring Faraday 2.0+? I found some discussion on bundler for a feature to override versions but it looks like it never made it to fruition

[jasondoc3]

@lparry I know it's been awhile, but here's a PR that should make this gem compatible with both faraday 1 and 2