config.yml in instana-1.213.2

- old
+ new

@@ -32,9 +32,10 @@
     - "./gemfiles/sidekiq_65.gemfile"
     - "./gemfiles/sidekiq_70.gemfile"
     - "./gemfiles/sinatra_14.gemfile"
     - "./gemfiles/sinatra_22.gemfile"
     - "./gemfiles/sinatra_30.gemfile"
+    - "./gemfiles/sinatra_40.gemfile"
     - "./gemfiles/shoryuken_50.gemfile"
     - "./gemfiles/shoryuken_60.gemfile"
     - "./gemfiles/mongo_216.gemfile"
     - "./gemfiles/mongo_219.gemfile"
 executors: