Update default gems list at b9782ab [ci skip]

Author: matzbot

NEWS.md

@@ -145,7 +145,7 @@ The following default gems are updated.
 * optparse 0.7.0.dev.2
 * prism 1.4.0
 * psych 5.2.6
-* resolv 0.6.1
+* resolv 0.6.2
 * stringio 3.1.8.dev
 * strscan 3.1.6.dev
 * uri 1.0.3