Bump workflow-api from 2.33 to 2.40

Bumps [workflow-api](https://github.com/jenkinsci/workflow-api-plugin) from 2.33 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-2.33...workflow-api-2.40)

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

pom.xml

@@ -92,7 +92,7 @@
     <dependency>
       <groupId>org.jenkins-ci.plugins.workflow</groupId>
       <artifactId>workflow-api</artifactId>
-      <version>2.33</version>
+      <version>2.40</version>
       <scope>test</scope>
     </dependency>
     <dependency>