Bump org.eclipse.xtend:xtend-maven-plugin in /tools

Bumps org.eclipse.xtend:xtend-maven-plugin from 2.31.0 to 2.32.0.

---
updated-dependencies:
- dependency-name: org.eclipse.xtend:xtend-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

tools/pom.xml

@@ -38,7 +38,7 @@
     <version.tycho>3.0.5</version.tycho>
     <version.verdict>${project.version}</version.verdict>
     <!-- No need for version.xtext to match VERDICT target platform -->
-    <version.xtext>2.31.0</version.xtext>
+    <version.xtext>2.32.0</version.xtext>
   </properties>
 
   <!-- Set all dependency versions in one place -->