Merge pull request #62 from ledger/dependabot/bundler/rack-2.2.6.4

Bump rack from 2.2.6.3 to 2.2.6.4

Author: afh

Gemfile.lock

@@ -85,7 +85,7 @@ GEM
     parallel (1.22.1)
     parslet (2.0.0)
     public_suffix (5.0.1)
-    rack (2.2.6.3)
+    rack (2.2.6.4)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)