Bump incrementals-maven-plugin from 1.2 to 1.3 (#483)

Bumps [incrementals-maven-plugin](https://github.com/jenkinsci/incrementals-tools) from 1.2 to 1.3.
- [Release notes](https://github.com/jenkinsci/incrementals-tools/releases)
- [Commits](jenkinsci/incrementals-tools@parent-1.2...parent-1.3)

---
updated-dependencies:
- dependency-name: io.jenkins.tools.incrementals:incrementals-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

pom.xml

@@ -449,7 +449,7 @@
           <!-- not gated by Incrementals profiles, since we want the incrementalify goal to be available from the start -->
           <groupId>io.jenkins.tools.incrementals</groupId>
           <artifactId>incrementals-maven-plugin</artifactId>
-          <version>1.2</version>
+          <version>1.3</version>
           <configuration>
             <includes>
               <include>org.jenkins-ci.*</include>