Bump rake-compiler-dock to pick up Ruby 2.6, drop older ones

With this version bump, the precompiled mysql2 gem for Windows supports Ruby 2.2, 2.3, 2.4, 2.5, 2.6. Windows Ruby 2.0 and 2.1 are dropped.
brianmario · Nov 27, 2019 · dee108d · dee108d
1 parent cb49983
commit dee108d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Gemfile b/Gemfile
@@ -23,7 +23,7 @@ end
 
 group :development do
   gem 'pry'
-  gem 'rake-compiler-dock', '~> 0.6.0'
+  gem 'rake-compiler-dock', '~> 0.7.0'
 end
 
 platforms :rbx do