.travis.yml in sidekiq-throttled-0.16.2 vs .travis.yml in sidekiq-throttled-0.17.0

@@ -31,9 +31,7 @@
       rvm: 2.4
       env: SUITE="rubocop"
       gemfile: Gemfile
 
 gemfile:
-  - gemfiles/sidekiq_5.0.gemfile
-  - gemfiles/sidekiq_5.1.gemfile
-  - gemfiles/sidekiq_5.2.gemfile
-  - gemfiles/sidekiq_6.0.gemfile
+  - gemfiles/sidekiq_6.4.gemfile
+  - gemfiles/sidekiq_6.5.gemfile