Merge pull request #38 from ruby/dependabot/bundler/rack-3.1.20

Bump rack from 3.1.18 to 3.1.20

Author: hsbt

Gemfile.lock

@@ -14,7 +14,7 @@ GEM
     puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (3.1.18)
+    rack (3.1.20)
     rack-protection (4.1.0)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)