Update default gems list at 9cf5d20 [ci skip]

Author: matzbot

NEWS.md

@@ -44,7 +44,7 @@ The following default gems are updated.
 
 * RubyGems 3.7.0.dev
 * bundler 2.7.0.dev
-* cgi 0.4.2.beta1
+* cgi 0.4.2
 * json 2.10.1
 * prism 1.3.0
 * psych 5.2.3