Bump org.eclipse.rdf4j:rdf4j-bom from 4.3.8 to 4.3.12

Bumps [org.eclipse.rdf4j:rdf4j-bom](https://github.com/eclipse/rdf4j) from 4.3.8 to 4.3.12.
- [Release notes](https://github.com/eclipse/rdf4j/releases)
- [Commits](eclipse-rdf4j/rdf4j@4.3.8...4.3.12)

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

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

pom.xml

@@ -47,7 +47,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <spring-boot.version>3.2.2</spring-boot.version>
-    <rdf4j.version>4.3.8</rdf4j.version>
+    <rdf4j.version>4.3.12</rdf4j.version>
     <graphql.java.version>21.3</graphql.java.version>
     <graphql.java.orchestrate.version>0.2.2</graphql.java.orchestrate.version>
     <commons.jexl3.version>3.2.1</commons.jexl3.version>