Merge pull request #82 from rubykr/dependabot/bundler/rack-3.1.20

Bump rack from 3.1.16 to 3.1.20

Author: marocchino

Gemfile.lock

@@ -250,7 +250,7 @@ GEM
       json
       websocket (~> 1.0)
     racc (1.8.1)
-    rack (3.1.16)
+    rack (3.1.20)
     rack-test (2.1.0)
       rack (>= 1.3)
     rake (13.2.1)