CAT-1366 : Fix issue url from old jira to github

Author: malikparvez

metadata.json

@@ -6,7 +6,7 @@
   "license": "Apache-2.0",
   "source": "https://github.com/puppetlabs/puppetlabs-stdlib",
   "project_page": "https://github.com/puppetlabs/puppetlabs-stdlib",
-  "issues_url": "https://tickets.puppetlabs.com/browse/MODULES",
+  "issues_url": "https://github.com/puppetlabs/puppetlabs-stdlib/issues",
   "dependencies": [
 
   ],