Bump org.jenkins-ci.plugins:jira from 3.0.8 to 3.12 (#314)

Bumps [org.jenkins-ci.plugins:jira](https://github.com/jenkinsci/jira-plugin) from 3.0.8 to 3.12.
- [Release notes](https://github.com/jenkinsci/jira-plugin/releases)
- [Changelog](https://github.com/jenkinsci/jira-plugin/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/jira-plugin@jira-3.0.8...jira-3.12)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.plugins:jira
  dependency-type: direct:development
...

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pom.xml

@@ -624,7 +624,7 @@
         <dependency>
             <groupId>org.jenkins-ci.plugins</groupId>
             <artifactId>jira</artifactId>
-            <version>3.0.8</version>
+            <version>3.12</version>
             <scope>test</scope>
         </dependency>
         <dependency>