docs: fix ci.jenkins.io badge link [skip ci]

Author: rantoniuk

README.md

@@ -3,7 +3,7 @@
 [![Documentation](https://img.shields.io/jenkins/plugin/v/jira.svg?label=Documentation)](https://plugins.jenkins.io/jira)
 [![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/jira.svg?color=blue)](https://stats.jenkins.io/pluginversions/jira.html)
 [![GitHub release](https://img.shields.io/github/release/jenkinsci/jira-plugin.svg?label=Release)](https://github.com/jenkinsci/jira-plugin/releases/latest)
-[![Jenkins CI](https://ci.jenkins.io/buildStatus/icon?job=Plugins/jira-plugin/master)](https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fjira-plugin/activity/)
+[![Jenkins CI](https://ci.jenkins.io/buildStatus/icon?job=Plugins/jira-plugin/master)](https://ci.jenkins.io/job/Plugins/job/jira-plugin/)
 [![Contributors](https://img.shields.io/github/contributors/jenkinsci/jira-plugin.svg)](https://github.com/jenkinsci/jira-plugin/graphs/contributors)
 
 ## About the plugin
@@ -159,4 +159,4 @@ There have been many developers involved in the development of this plugin and t
 
 ## Maintainers
 
-See [MAINTAINERS](MAINTAINERS.md) for some useful info.
+See [MAINTAINERS](MAINTAINERS.md) for some useful info.