Move rack back to 2.2.x

This is the last version which is known to have working implementations in production, and compatibility
tests currently fail with Rack 3.0 so let's move this forward separately as an independent chunk of work.

Signed-off-by: Chad Wilson <chadw@thoughtworks.com>

Author: chadlwilson

Gemfile

@@ -4,7 +4,7 @@ group :default do
   if rack_version = ENV['RACK_VERSION']
     gem 'rack', rack_version
   else
-    gem 'rack'
+    gem 'rack', '< 3.0'
   end
 end
 
@@ -14,4 +14,3 @@ end
 
 gem 'rake', '~> 13.2', :group => :test, :require => nil
 gem 'rspec', :group => :test
-gem 'jruby-openssl', :group => :test if JRUBY_VERSION < '1.7.0'

Gemfile.lock

@@ -5,15 +5,15 @@ GEM
       bundler
       rake
     diff-lcs (1.5.1)
-    rack (3.0.11)
+    rack (2.2.9)
     rake (13.2.1)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
       rspec-mocks (~> 3.13.0)
     rspec-core (3.13.0)
       rspec-support (~> 3.13.0)
-    rspec-expectations (3.13.0)
+    rspec-expectations (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-mocks (3.13.1)
@@ -26,7 +26,7 @@ PLATFORMS
 
 DEPENDENCIES
   appraisal (< 1.0)
-  rack
+  rack (< 3.0)
   rake (~> 13.2)
   rspec