Bump com.google.protobuf:protobuf-java-util from 3.25.1 to 3.25.3

Bumps com.google.protobuf:protobuf-java-util from 3.25.1 to 3.25.3.

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

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

Author: dependabot[bot]

router-protobuf/build.gradle.kts

@@ -15,7 +15,7 @@ dependencies {
 
     implementation("org.slf4j:slf4j-api:2.0.12")
     api("com.google.protobuf:protobuf-java:3.25.1")
-    api("com.google.protobuf:protobuf-java-util:3.25.1")
+    api("com.google.protobuf:protobuf-java-util:3.25.3")
     implementation("com.google.guava:guava:33.0.0-jre")
     api(project(":router"))