bump version to 2.2.3

package.json

@@ -1,6 +1,6 @@
 {
  "name": "com.siemens.bt.jazz.rtc.workitemeditor.presentation.statushistory",
- "version": "2.2.2",
+ "version": "2.2.3",
  "description": "a non-Attribute-based Work Item Editor Extension for Rational Team Concert that shows all Status changes since the creation of the work item in form of a timeline.",
  "scripts": {
  "build": "webpack --config ./webpack.config.js"