Upgrade finstyle to version 1.4.0.

Author: fnichol

test-kitchen.gemspec

@@ -47,6 +47,6 @@ Gem::Specification.new do |gem|
   # style and complexity libraries are tightly version pinned as newer releases
   # may introduce new and undesireable style choices which would be immediately
   # enforced in CI
-  gem.add_development_dependency "finstyle",  "1.3.0"
+  gem.add_development_dependency "finstyle",  "1.4.0"
   gem.add_development_dependency "cane",      "2.6.2"
 end