[Gems] Back to rack 2 again, for now

https://github.com/Shopify/pitchfork/issues/117
Needs https://github.com/rack/rack/pull/2062

Gemfile

@@ -40,6 +40,9 @@ gem "faraday"
 gem "faraday-follow_redirects"
 gem "faraday-retry"
 
+# https://github.com/Shopify/pitchfork/issues/117
+gem "rack", "~> 2.0"
+
 group :production do
   gem "pitchfork"
 end

Gemfile.lock

@@ -229,16 +229,16 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
-    rack (3.0.10)
+    rack (2.2.9)
     rack-proxy (0.7.7)
       rack
-    rack-session (2.0.0)
-      rack (>= 3.0.0)
+    rack-session (1.0.2)
+      rack (< 3)
     rack-test (2.1.0)
       rack (>= 1.3)
-    rackup (2.1.0)
-      rack (>= 3)
-      webrick (~> 1.8)
+    rackup (1.0.0)
+      rack (< 3)
+      webrick
     rails (7.1.3.2)
       actioncable (= 7.1.3.2)
       actionmailbox (= 7.1.3.2)
@@ -397,6 +397,7 @@ DEPENDENCIES
   pg
   pitchfork
   puma
+  rack (~> 2.0)
   rails (~> 7.1.0)
   recaptcha
   redis