Bump groovy-bom from 4.0.6 to 4.0.8

Bumps [groovy-bom](https://github.com/apache/groovy) from 4.0.6 to 4.0.8.
- [Release notes](https://github.com/apache/groovy/releases)
- [Commits](https://github.com/apache/groovy/commits)

---
updated-dependencies:
- dependency-name: org.apache.groovy:groovy-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -67,7 +67,7 @@ under the License.
     <beanshell-artifactId>bsh</beanshell-artifactId>
     <beanshell-version>2.0b6</beanshell-version>
     <project.build.outputTimestamp>2023-01-31T17:17:20Z</project.build.outputTimestamp>
-    <groovy-version>4.0.6</groovy-version>
+    <groovy-version>4.0.8</groovy-version>
   </properties>
 
   <dependencyManagement>