Release 9 6 1 (#650)

* Release 9.6.1

* Update release notes

* update changelog

Author: KazuCocoa

CHANGELOG.md

@@ -3,6 +3,15 @@ Commit based release not is [release_notes.md](./release_notes.md)
 
 Release tags are https://github.com/appium/ruby_lib/releases .
 
+## v9.6.1
+### 1. Enhancements
+- Refactor `XCUItest` for iOS and `uiautomator2` for Android a bit
+
+### 2. Bug fixes
+- missing extending `button` methods for `uiautomator2`, Android
+
+### 3. Deprecations
+
 ## v9.6.0
 ### 1. Enhancements
 - Reduce Global Driver

Rakefile

@@ -206,7 +206,7 @@ task :notes do
   end
 
   pairs.each_index do |a|
-    data     =`git log --pretty=oneline #{pairs[a]}`
+    data     =`git log --pretty=oneline #{pairs[a]}`.force_encoding('UTF-8')
     new_data = ''
     data.split("\n").each do |line|
       hex     = line.match(/[a-zA-Z0-9]+/)[0]