Merge pull request #1700 from coderdojo-japan/dependabot/bundler/rack-3.1.16

Bump rack from 3.1.15 to 3.1.16

Author: yasulab

Gemfile.lock

@@ -284,7 +284,7 @@ GEM
       get_process_mem (>= 0.2)
       puma (>= 2.7)
     racc (1.8.1)
-    rack (3.1.15)
+    rack (3.1.16)
     rack-attack (6.7.0)
       rack (>= 1.0, < 4)
     rack-host-redirect (1.3.0)