Bump plugin from 4.3 to 4.12 (#34)

Bumps [plugin](https://github.com/jenkinsci/plugin-pom) from 4.3 to 4.12.
- [Release notes](https://github.com/jenkinsci/plugin-pom/releases)
- [Changelog](https://github.com/jenkinsci/plugin-pom/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/plugin-pom@plugin-4.3...plugin-4.12)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>4.3</version>
+    <version>4.12</version>
   </parent>
 
   <artifactId>display-url-api</artifactId>