Bump com.google.protobuf:protobuf-java in /planetiler-core (#1021)

Bumps [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) from 4.28.1 to 4.28.2.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

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planetiler-core/pom.xml

@@ -19,7 +19,7 @@
     <geotools.version>31.3</geotools.version>
     <log4j.version>2.24.0</log4j.version>
     <prometheus.version>0.16.0</prometheus.version>
-    <protobuf.version>4.28.1</protobuf.version>
+    <protobuf.version>4.28.2</protobuf.version>
     <geopackage.version>6.6.5</geopackage.version>
   </properties>