Update default gems list at b7ad60a794 [ci skip]

NEWS.md

@@ -15,7 +15,14 @@ Note: We're only listing outstanding class updates.
 
 *   The following default gems are updated.
 
+    * RubyGems 3.5.0.dev
     * abbrev 0.1.1
+    * bundler 2.5.0.dev
+    * csv 3.2.7
+    * fiddle 1.1.2
+    * optparse 0.4.0.pre.1
+    * stringio 3.0.5
+    * strscan 3.0.6
 *   The following bundled gems are updated.
 
 See GitHub releases like [GitHub Releases of Logger](https://github.com/ruby/logger/releases) or changelog for details of the default gems or bundled gems.