Update bundled gems list at 307af18fa0 [ci skip]

NEWS.md

@@ -189,7 +189,7 @@ The following bundled gems are updated.
 * rss 0.3.0
 * net-imap 0.4.5
 * net-smtp 0.4.0
-* rbs 3.3.1
+* rbs 3.3.2
 * typeprof 0.21.8
 * debug 1.8.0