Merge pull request #339 from ifad/chore/338-fix-ruby-head

Fix specs against Ruby head

spec/aruba/migrations_spec.rb

@@ -23,7 +23,7 @@
 
     let(:command) { 'bundle exec rails db:drop db:create db:migrate' }
     let(:action) { run_command(command) }
-    let(:regex) { /-- change_table\(:impressions, {:temporal=>true, :copy_data=>true}\)/ }
+    let(:regex) { /-- change_table\(:impressions, #{{ temporal: true, copy_data: true }.inspect}\)/ }
 
     before { copy('%/migrations/56/', 'db/migrate') }