Merge pull request #1065 from simon04/yarn

yarn: update to 1.17.3

lib/docs/filters/yarn/clean_html.rb

@@ -27,6 +27,9 @@ module Docs
 
         css('a.toc', '.nav-tabs', '#select-platform', '.guide-controls + .list-group', '.guide-controls').remove
 
+        css('.install-select-os', '#install-instructions > .install-os-instructions:first-child').remove
+        css('.install-os-instructions[style]').remove_attribute('style')
+
         css('.guide-content', '.tabs', '.tab-content').each do |node|
           node.before(node.children).remove
         end

lib/docs/scrapers/yarn.rb

@@ -1,7 +1,7 @@
 module Docs
   class Yarn < UrlScraper
     self.type = 'simple'
-    self.release = '1.12.1'
+    self.release = '1.17.3'
     self.base_url = 'https://yarnpkg.com/en/docs/'
     self.links = {
       home: 'https://yarnpkg.com/',