Bump org.eclipse.rdf4j:rdf4j-bom from 4.3.8 to 4.3.9

Bumps [org.eclipse.rdf4j:rdf4j-bom](https://github.com/eclipse/rdf4j) from 4.3.8 to 4.3.9.
- [Release notes](https://github.com/eclipse/rdf4j/releases)
- [Commits](eclipse-rdf4j/rdf4j@4.3.8...4.3.9)

---
updated-dependencies:
- dependency-name: org.eclipse.rdf4j:rdf4j-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -19,7 +19,7 @@
 
     <!-- dependencies -->
     <commons.rdf.version>0.5.0</commons.rdf.version>
-    <rdf4j.version>4.3.8</rdf4j.version>
+    <rdf4j.version>4.3.9</rdf4j.version>
     <jena.version>4.10.0</jena.version>
     <inrupt.commons.rdf4j.version>0.6.0</inrupt.commons.rdf4j.version>