Update bundled gems list at 2023-01-06

NEWS.md

@@ -35,6 +35,7 @@ Note: We're only listing outstanding class updates.
 *   The following bundled gems are updated.
 
     * minitest 5.17.0
+    * rbs 2.8.3
 
 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.
 

gems/bundled_gems

@@ -11,6 +11,6 @@ net-pop         0.1.2   https://github.com/ruby/net-pop
 net-smtp        0.3.3   https://github.com/ruby/net-smtp
 matrix          0.4.2   https://github.com/ruby/matrix
 prime           0.1.2   https://github.com/ruby/prime
-rbs             2.8.2   https://github.com/ruby/rbs
+rbs             2.8.3   https://github.com/ruby/rbs
 typeprof        0.21.3  https://github.com/ruby/typeprof
 debug           1.7.1   https://github.com/ruby/debug