Merge pull request #35 from oauth-xx/depfu/update/rack-3.1.13

Update rack 3.1.12 → 3.1.13 (patch)

Author: pboling

Gemfile.lock

@@ -46,7 +46,7 @@ GEM
     psych (5.1.2)
       stringio
     racc (1.8.1)
-    rack (3.1.12)
+    rack (3.1.13)
     rack-session (2.1.0)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)