Bump irb from 1.2.0 to 1.2.1 in /WcaOnRails

Bumps [irb](https://github.com/ruby/irb) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/ruby/irb/releases)
- [Commits](https://github.com/ruby/irb/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

WcaOnRails/Gemfile.lock

@@ -278,7 +278,8 @@ GEM
       mini_magick (>= 4.9.5, < 5)
       ruby-vips (>= 2.0.13, < 3)
     iniparse (1.4.4)
-    irb (1.2.0)
+    io-console (0.5.4)
+    irb (1.2.1)
       reline (>= 0.0.1)
     iso (0.2.2)
       i18n
@@ -453,7 +454,8 @@ GEM
     redcarpet (3.5.0)
     ref (2.0.0)
     regexp_parser (1.6.0)
-    reline (0.0.7)
+    reline (0.1.2)
+      io-console (~> 0.5)
     representable (3.0.4)
       declarative (< 0.1.0)
       declarative-option (< 0.2.0)