Merge branch 'upgrade-web-console' into 'master'

Upgrade web-console to 2.3.0

Rails 5 compatibility release.

[See the Changelog for more information](https://github.com/rails/web-console/releases/tag/v2.3.0).

Working towards #14286.

See merge request !3400

Gemfile.lock

@@ -865,7 +865,7 @@ GEM
       equalizer (~> 0.0, >= 0.0.9)
     warden (1.2.4)
       rack (>= 1.0)
-    web-console (2.2.1)
+    web-console (2.3.0)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
       railties (>= 4.0)