chore: bumped plugin version to 2.2.1

Author: Aaron Faber

plugin.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<plugin xmlns="http://www.phonegap.com/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android" id="cordova-plugin-file-opener2" version="2.2.0">
+<plugin xmlns="http://www.phonegap.com/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android" id="cordova-plugin-file-opener2" version="2.2.1">
 
     <name>File Opener2</name>
     <description>A File Opener Plugin for Cordova. (The Original Version)</description>