upgrade faraday from 1.0 to 2.0

[kbrock]

faraday 2.0 uses different middleware. Upgraded to use follow_redirects.

faraday 2.0 has been split up to use many http client libraries Using net-http, so this avoids requiring a dozen adapter gems

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I would like to test this with tasks to ensure it all still works

Faraday 2.0 only supports ruby 3.0 and higher. had to drop testing (and supporting) ruby 2.7

[kbrock]

@Fryguy I'm good with this now

[Fryguy]

@kbrock damn - I just merged this but it does have me concerned now. I recently was using a different gem that had faraday locked to 2.x, and it caused mismatches. I checked ManageIQ core, and this will break core if we release it.

In our case, manageiq core includes manageiq-api-client ^[ref]. However, other gems include faraday locked to <2.0:

• ms_rest ^[ref]
• ms_rest_azure ^[ref]
• prometheus-alert-buffer-client ^[ref]
• promeheus-api-client ^[ref]
• xclarity_client ^[ref]
• ansible_tower_client ^[ref], which doesn't specify version, but includes faraday_middleware, so it kind of assumes 1.x in its code.

A number of other gems are <3.0 which are probably fine such as google-cloud-env, google-cloud-auth, and signet.

I think the best way forward is to somehow support both 1.x and 2.x in the same way that the google-cloud-env, google-cloud-auth, and signet gems some how do.

[Fryguy]

@kbrock fixed my concerns in https://github.com/ManageIQ/manageiq-api-client/pull/124