[Bug Fix] Upgrade aws-sdk-code-generator dependency to 0.2.2.pre

Prior to this change, there was a bug in the aws-sdk-code-generator ruby gem that caused it to not work on Windows. The fix for that issue was put up and then a new version of the gem was released that included that.

This change updates our dependency on aws-sdk-code-generator to use the now fixed aws-sdk-code-generator gem.

 * Unit Tests : [Y]
 * Integration Tests : [N/A]

Author: saketu-aws

codedeploy_agent.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency('rubyzip', '~> 1.3.0')
   spec.add_dependency('logging', '~> 1.8')
   spec.add_dependency('aws-sdk-core', '~> 3')
-  spec.add_dependency('aws-sdk-code-generator', '~> 0.2.1.pre')
+  spec.add_dependency('aws-sdk-code-generator', '~> 0.2.2.pre')
   spec.add_dependency('aws-sdk-s3', '~> 1')
   spec.add_dependency('simple_pid', '~> 0.2.1')
   spec.add_dependency('docopt', '~> 0.5.0')