Update gemspec file to require Ruby 3.0.0 (#513)

* Update gemspec file to require Ruby 3.0.0

Change-Id: I8388459a2bcdc7ef059c763936b3cb8d00bdc590

* Adding more detail to changelog

Change-Id: Id378e8e09615019590bde0d610f89ce06872e4b3

Author: dorasun

CHANGELOG.md

@@ -1,6 +1,7 @@
 33.1.0
 -----
  - Improved the logging format to include more information and increase human readability.
+ - Update Ruby version in .gemspec file to require a minimum version of 3.0.0
 
 33.0.0
 ------

google-ads-googleads.gemspec

@@ -31,7 +31,7 @@ Gem::Specification.new do |s|
   s.license = 'Apache-2.0'
   s.platform = Gem::Platform::RUBY
   s.require_paths = ['lib']
-  s.required_ruby_version = '>= 2.5.0'
+  s.required_ruby_version = '>= 3.0.0'
   s.summary = 'Google client library for the Google Ads API'
 
   s.add_dependency 'gapic-common', ['>= 0.25', '< 1.0']

lib/google/ads/google_ads/version.rb

@@ -20,7 +20,7 @@ module Google
   module Ads
     module GoogleAds
       CLIENT_LIB_NAME = 'gccl'.freeze
-      CLIENT_LIB_VERSION = '33.0.0'.freeze
+      CLIENT_LIB_VERSION = '33.1.0'.freeze
       VERSION = CLIENT_LIB_VERSION
     end
   end