bug(jira): fix parse issue

Author: kherP

README.md

@@ -12,10 +12,10 @@ To update the fields of an issue you need to specify an issue key and field data
 
 ```yaml
 - name: Comment on issue
-  uses: kherP/[email protected].7
+  uses: kherP/[email protected].8
   with:
   issue: INC-2
-  fields: customfield_10006:3,customfield_10007:44
+  fields: customfield_10006::https://www.google.com,customfield_10007::44
 ```
 
 ## Action Spec

common/net/Jira.js

@@ -28,7 +28,7 @@ class Jira {
 		try {
 			const array = data.split(',');
       const parsedData = array.reduce((newData, item) => {
-        const splitItem = item.split(':');
+        const splitItem = item.split('::');
         if (splitItem.length === 2) {
           newData[splitItem[0].trim()] = splitItem[1];
         }