Bump org.eclipse.rdf4j:rdf4j-bom from 5.1.4 to 5.2.0

Bumps [org.eclipse.rdf4j:rdf4j-bom](https://github.com/eclipse/rdf4j) from 5.1.4 to 5.2.0.
- [Release notes](https://github.com/eclipse/rdf4j/releases)
- [Commits](eclipse-rdf4j/rdf4j@5.1.4...5.2.0)

---
updated-dependencies:
- dependency-name: org.eclipse.rdf4j:rdf4j-bom
  dependency-version: 5.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -56,7 +56,7 @@
 	    <!--  NOTE: jsonldjava is also used by rdf4j and jena, check the version
 	          is cross-compatible -->
     <jsonldjava.version>0.13.6</jsonldjava.version>
-    <rdf4j.version>5.1.4</rdf4j.version>
+    <rdf4j.version>5.2.0</rdf4j.version>
     <jena.version>3.5.0</jena.version>
         <!--  NOTE: dexx and xerces versions should match
         the versions marked as <optional> in jena-osgi pom