Enable support for SHA1 encryption

In Rails 7.1, encryption uses SHA256 whereas Rails 7.0 uses SHA1. As we
have data encrypted in SHA1, we need to enable support.

A later PR will migrate all data to use SHA256, then we will remove
support for SHA1.

config/application.rb

@@ -100,5 +100,7 @@ class Application < Rails::Application
     config.show_user_research_recruitment_banner = false
 
     config.add_autoload_paths_to_load_path = true
+
+    config.active_record.encryption.support_sha1_for_non_deterministic_encryption = true
   end
 end