Bump plugin from 4.14 to 4.15

Bumps [plugin](https://github.com/jenkinsci/plugin-pom) from 4.14 to 4.15.
- [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-4.14...plugin-4.15)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.jenkins-ci.plugins</groupId>
 		<artifactId>plugin</artifactId>
-		<version>4.14</version>
+		<version>4.15</version>
 	</parent>
 
 	<artifactId>parameterized-scheduler</artifactId>