[release] 2.3.1 - Sampling patch for edge case (#370)

### Fixes
  - patch sampling logic around nested gate falling through to default





>Included In This Release
>- c516bf1 kat-statsig
>   - sampling fix (#369)

Author: kat-statsig

lib/statsig.rb

@@ -370,7 +370,7 @@ def self.get_client_initialize_response(
   def self.get_statsig_metadata
     {
       'sdkType' => 'ruby-server',
-      'sdkVersion' => '2.3.0',
+      'sdkVersion' => '2.3.1',
       'languageVersion' => RUBY_VERSION
     }
   end

statsig.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name        = 'statsig'
-  s.version     = '2.3.0'
+  s.version     = '2.3.1'
   s.summary     = 'Statsig server SDK for Ruby'
   s.description = 'Statsig server SDK for feature gates and experimentation in Ruby'
   s.authors     = ['Statsig, Inc']