Bump cel-bom from 0.3.11 to 0.3.12 (#453)

Bumps [cel-bom](https://github.com/projectnessie/cel-java) from 0.3.11 to 0.3.12.
- [Release notes](https://github.com/projectnessie/cel-java/releases)
- [Commits](https://github.com/projectnessie/cel-java/compare/v0.3.11...v0.3.12)

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

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planetiler-custommap/pom.xml

@@ -45,7 +45,7 @@
       <dependency>
         <groupId>org.projectnessie.cel</groupId>
         <artifactId>cel-bom</artifactId>
-        <version>0.3.11</version>
+        <version>0.3.12</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>