fix: various minor issues (#826)

* fix: toxiproxy configuration changes

* fix: changelog link isn't working

* fix: inline redis_script

Author: mhenrixon

.codeclimate.yml

@@ -12,8 +12,7 @@ gem "faraday-retry"
 gem "gem-release"
 gem "github-markup"
 gem "rack-test"
-gem "rake", "13.0.3"
-gem "reek", ">= 5.3"
+gem "rake"
 gem "rspec"
 gem "rspec-benchmark"
 gem "rspec-html-matchers"