Enable eager loading, even though we really shouldn't have to

Due to a potential issue between dry-core / rails autoloading: dry-rb/dry-core#25

config/environments/test.rb

@@ -10,7 +10,7 @@
   # Do not eager load code on boot. This avoids loading your whole application
   # just for the purpose of running a single test. If you are using a tool that
   # preloads Rails for running tests, you may have to set it to true.
-  config.eager_load = false
+  config.eager_load = true
 
   # Configure public file server for tests with Cache-Control for performance.
   config.public_file_server.enabled = true