chore: bump version to 12.0.0

Author: KazuCocoa

CHANGELOG.md

@@ -11,7 +11,7 @@ Release tags are https://github.com/appium/ruby_lib/releases .
 
 ### 3. Deprecations
 
-## 12.0.0
+## 12.0.0 - 2021-11-06
 ### 1. Enhancements
 
 - Update ruby_lib_core version from v4 to v5. The change affects this library.

lib/appium_lib/version.rb

@@ -14,6 +14,6 @@
 
 module Appium
   # Version and Date are defined on the 'Appium' module, not 'Appium::Common'
-  VERSION = '12.0.0.rc5' unless defined? ::Appium::VERSION
-  DATE    = '2021-11-05' unless defined? ::Appium::DATE
+  VERSION = '12.0.0' unless defined? ::Appium::VERSION
+  DATE    = '2021-11-06' unless defined? ::Appium::DATE
 end

readme.md

@@ -26,7 +26,7 @@ We can avoid the class driver with current `ruby_lib`, but if you'd like to impl
 ### Ruby Lib and Appium
 
 - Ruby library version over `12.0.0` is based on Selenium v4
-    - Please read [changelog of 12.0.0](CHANGELOG.md#1200---2021-11-05) for more details to migrate from v11 to v12
+    - Please read [changelog of 12.0.0](CHANGELOG.md#1200---2021-11-06) for more details to migrate from v11 to v12
 - Ruby library version over `9.8.0` requires Appium over `1.8`
 - Ruby library version under `9.7.5` can work with Appium under `1.7`