Bump rdf4j-bom from 2.2.2 to 3.7.6

Bumps [rdf4j-bom](https://github.com/eclipse/rdf4j) from 2.2.2 to 3.7.6.
- [Release notes](https://github.com/eclipse/rdf4j/releases)
- [Commits](eclipse/rdf4j@2.2.2...3.7.6)

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

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

pom.xml

@@ -63,7 +63,7 @@
 	    <!--  NOTE: jsonldjava is also used by rdf4j and jena, check the version
 	          is cross-compatible -->
         <jsonldjava.version>0.11.1</jsonldjava.version>
-        <rdf4j.version>2.2.2</rdf4j.version>
+        <rdf4j.version>3.7.6</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