Merge pull request #295 from github/dependabot/bundler/rack-3.1.21

build(deps-dev): bump rack from 3.1.20 to 3.1.21

Author: github-actions[bot]

Gemfile.lock

@@ -72,7 +72,7 @@ GEM
       racc
     prism (1.9.0)
     racc (1.8.1)
-    rack (3.1.20)
+    rack (3.1.21)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest