[build] Declare rack dependency slightly more consistently

There was no 2.3, so this is moot, however it's clearer with later rack versions if we make this more consistent

(cherry picked from commit 5a16cf1)

Author: chadlwilson

.github/workflows/maven.yml

@@ -10,7 +10,7 @@ env:
   # Default versions for canonical release build
   DEFAULT_JAVA_VERSION: '8'
   DEFAULT_JRUBY_VERSION: '9.4.13.0' # Should match pom.xml <jruby.version> property (AND a version inside the test matrix)
-  DEFAULT_RACK_VERSION: '~> 2.2' # Should match Gemfile (AND a version inside the test matrix)
+  DEFAULT_RACK_VERSION: '~> 2.2.0' # Should match Gemfile (AND a version inside the test matrix)
 
 jobs:
   build:
@@ -21,7 +21,7 @@ jobs:
       matrix:
         jruby_version: [ '9.3.15.0', '9.4.13.0' ]
         java_version: [ '8', '11', '17', '21' ]
-        rack_version: [ '~> 2.2' ]
+        rack_version: [ '~> 2.2.0' ]
       fail-fast: false
 
     steps:

Gemfile

@@ -4,7 +4,7 @@ group :default do
   if rack_version = ENV['RACK_VERSION']
     gem 'rack', rack_version
   else
-    gem 'rack', '~> 2.2'
+    gem 'rack', '~> 2.2.0'
   end
 end
 

Gemfile.lock

@@ -32,6 +32,6 @@ PLATFORMS
 
 DEPENDENCIES
   appraisal
-  rack (~> 2.2)
+  rack (~> 2.2.0)
   rake (~> 13.3)
   rspec

examples/camping/Gemfile

@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rack', '~> 2.2'
+gem 'rack', '~> 2.2.0'
 gem 'rackup'
 gem 'camping', '< 3'
 gem 'markaby'

examples/camping/Gemfile.lock

@@ -40,7 +40,7 @@ DEPENDENCIES
   camping (< 3)
   jruby-jars (< 10)
   markaby
-  rack (~> 2.2)
+  rack (~> 2.2.0)
   rackup
   warbler!