Bump yard to support Ruby 2.7

benoittgt · benoittgt · commit 9390e2c9b5e8 · 2020-01-02T15:56:05.000+01:00
See: https://github.com/lsegal/yard/releases/tag/v0.9.21
diff --git a/Gemfile b/Gemfile
@@ -20,7 +20,7 @@ else
   gem 'rake', '< 11.0.0' # rake 11 requires Ruby 1.9.3 or later
 end
 
-gem 'yard', '~> 0.9.12', :require => false
+gem 'yard', '~> 0.9.22', :require => false
 
 ### deps for rdoc.info
 group :documentation do
