[data-plane]: bump protobuf.version from 3.25.2 to 4.27.2 in /data-plane

Bumps `protobuf.version` from 3.25.2 to 4.27.2.

Updates `com.google.protobuf:protobuf-java` from 3.25.2 to 4.27.2
- [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)

Updates `com.google.protobuf:protobuf-java-util` from 3.25.2 to 4.27.2

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: com.google.protobuf:protobuf-java-util
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

data-plane/pom.xml

@@ -48,7 +48,7 @@
     <micrometer.version>1.11.5</micrometer.version>
     <opentelemetry.version>1.17.0</opentelemetry.version>
     <jackson.version>2.14.1</jackson.version>
-    <protobuf.version>3.25.2</protobuf.version>
+    <protobuf.version>4.27.2</protobuf.version>
     <bucket4j.version>7.6.0</bucket4j.version>
     <slf4j.version>2.0.9</slf4j.version>
     <ch.qos.logback.version>1.4.14</ch.qos.logback.version>