fix(deps): update dependency com.google.protobuf:protobuf-java to v4.30.0

Author: renovate[bot]

Diff for: test-suite-java/pom.xml

@@ -13,7 +13,7 @@
         <packaging>jar</packaging>
         <micronaut.version>4.2.0</micronaut.version>
         <grpc.version>1.59.1</grpc.version>
-        <protoc.version>4.29.3</protoc.version>
+        <protoc.version>4.30.0</protoc.version>
         <guava.version>33.4.0-jre</guava.version>
         <jdk.version>17</jdk.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>