Update Faraday (#32)

* bump faraday dependency

* bump version

Author: Mitchell Henke

lib/omniauth/login_dot_gov/version.rb

@@ -1,5 +1,5 @@
 module OmniAuth
   module LoginDotGov
-    VERSION = '2.0.0'.freeze
+    VERSION = '2.0.1'.freeze
   end
 end

omniauth_login_dot_gov.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |s|
   s.executables = `git ls-files -- bin/*`.split("\n").map { |f| File.basename(f) }
   s.require_paths = ['lib']
 
-  s.add_dependency 'faraday', '~> 0.17'
+  s.add_dependency 'faraday', '~> 2.0'
   s.add_dependency 'json-jwt', '~> 1.11'
   s.add_dependency 'jwt', '~> 2.2'
   s.add_dependency 'multi_json', '~> 1.14'