Return a Rack::BodyProxy from the Rails::Rack::Logger monkey patch (

#333)

* Return a `Rack::BodyProxy` from the `Rails::Rack::Logger` monkey patch

This should return the same object that Rails is returning. See https://github.com/rails/rails/blob/8d1b8e870c1c42859132c8d51ceff0ac72cbe34b/railties/lib/rails/rack/logger.rb#L38

* Update lib/lograge/rails_ext/rack/logger.rb

* Update CHANGELOG.md

* Update logger.rb

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Change Log
 
+### Unreleased
+
+* Return a `Rack::BodyProxy` from the `Rails::Rack::Logger` monkey patch, this ensures the same return type as Rails [#333](https://github.com/roidrage/lograge/pull/333)
+
 ### 0.11.2
 
 * Resolve a bug with Action Cable registration [#286](https://github.com/roidrage/lograge/pull/286)

lib/lograge/rails_ext/rack/logger.rb

@@ -15,7 +15,9 @@ class Logger
       # Overwrites Rails code that logs new requests
       def call_app(*args)
         env = args.last
-        @app.call(env)
+        status, headers, body = @app.call(env)
+        # needs to have same return type as the Rails builtins being overridden, see https://github.com/roidrage/lograge/pull/333
+        [status, headers, ::Rack::BodyProxy.new(body)]
       ensure
         ActiveSupport::LogSubscriber.flush_all!
       end