Bump workflow-api from 2.30 to 2.40

Bumps [workflow-api](https://github.com/jenkinsci/workflow-api-plugin) from 2.30 to 2.40.
- [Release notes](https://github.com/jenkinsci/workflow-api-plugin/releases)
- [Changelog](https://github.com/jenkinsci/workflow-api-plugin/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/workflow-api-plugin@workflow-api-2.30...workflow-api-2.40)

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

pom.xml

@@ -106,7 +106,7 @@
         <dependency> <!-- FilePathUtils -->
             <groupId>org.jenkins-ci.plugins.workflow</groupId>
             <artifactId>workflow-api</artifactId>
-            <version>2.30</version>
+            <version>2.40</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>