Platform: Fix faraday [#75574188]

Pivotal tracker story [#75574188](https://www.pivotaltracker.com/story/show/75574188) in project *Platform*:

> Based on the recommendation in https://github.com/HouseTrip/routemaster_client/issues/12
> 
> We should test the routemaster-client with different versions of faraday to make sure it works.
> 
> Update the bundle on the property_search and affiliate_app

### News update
The change is actually not breaking, it was just that locally I was using the newer Faraday version and the newer version syntax, which is not supported by the older version. Fortunately, the vice-versa is true (the older syntax is supported by the newer Faraday version)