Move encryption config to application.rb so it's set earlier

Upgrading flipper caused the tests to break because when it triggered the application record encyption settings to be initialized before they were configured.

Rails suggests putting this config into the application.rb[1], which ensures it is loaded earlier and avoids this problem.

I scan the flipper changes and it's not obvious what caused this, but it's likely to do with changes in interaction with active record.

Alternatively we could set flipper to 'require: false',.

[1] - https://guides.rubyonrails.org/active_record_encryption.html

Author: zetter-rpf

config/application.rb

@@ -60,5 +60,9 @@ class Application < Rails::Application
 
     config.middleware.insert_before 0, CorpMiddleware
     config.generators.system_tests = nil
+
+    config.active_record.encryption.primary_key = ENV.fetch('ACTIVE_RECORD_ENCRYPTION_PRIMARY_KEY')
+    config.active_record.encryption.deterministic_key = ENV.fetch('ACTIVE_RECORD_ENCRYPTION_DETERMINISTIC_KEY')
+    config.active_record.encryption.key_derivation_salt = ENV.fetch('ACTIVE_RECORD_ENCRYPTION_KEY_DERIVATION_SALT')
   end
 end