Update bundled gems list at 6589af52d2 [ci skip]

NEWS.md

@@ -140,6 +140,7 @@ The following bundled gem is promoted from default gems.
 The following bundled gems are updated.
 
 * minitest 5.20.0
+* rake 13.1.0
 * test-unit 3.6.1
 * rexml 3.2.6
 * rss 0.3.0

gems/bundled_gems

@@ -7,7 +7,7 @@
 #   if `revision` is not given, "v"+`version` or `version` will be used.
 minitest        5.20.0  https://github.com/minitest/minitest
 power_assert    2.0.3   https://github.com/ruby/power_assert
-rake            13.0.6  https://github.com/ruby/rake
+rake            13.1.0  https://github.com/ruby/rake
 test-unit       3.6.1   https://github.com/test-unit/test-unit
 rexml           3.2.6   https://github.com/ruby/rexml
 rss             0.3.0   https://github.com/ruby/rss