Update default gems list at 069ecfe [ci skip]

Author: matzbot

NEWS.md

@@ -45,7 +45,7 @@ The following default gems are updated.
 * RubyGems 3.7.0.dev
 * bundler 2.7.0.dev
 * cgi 0.4.2
-* json 2.10.1
+* json 2.10.2
 * optparse 0.7.0.dev.1
 * prism 1.3.0
 * psych 5.2.3