Bump org.eclipse.sisu.plexus from 0.3.0.M1 to 0.9.0.M1

Bumps [org.eclipse.sisu.plexus](https://github.com/eclipse/sisu.plexus) from 0.3.0.M1 to 0.9.0.M1.
- [Release notes](https://github.com/eclipse/sisu.plexus/releases)
- [Commits](eclipse-sisu/sisu.plexus@milestones/0.3.0.M1...milestones/0.9.0.M1)

---
updated-dependencies:
- dependency-name: org.eclipse.sisu:org.eclipse.sisu.plexus
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -61,7 +61,7 @@
         <groupId>org.eclipse.sisu</groupId>
         <artifactId>org.eclipse.sisu.plexus</artifactId>
         <!-- Maven 3.2.5 -->
-        <version>0.3.0.M1</version>
+        <version>0.9.0.M1</version>
       </dependency>
       <dependency>
         <groupId>org.codehaus.plexus</groupId>