Bump com.google.protobuf:protobuf-java in /lang/java (#3259)

Bumps [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) from 4.28.0 to 4.29.1.
- [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
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

lang/java/pom.xml

@@ -52,7 +52,7 @@
     <maven-core.version>3.9.6</maven-core.version>
     <mockito.version>5.13.0</mockito.version>
     <netty.version>4.1.113.Final</netty.version>
-    <protobuf.version>4.28.0</protobuf.version>
+    <protobuf.version>4.29.1</protobuf.version>
     <reload4j.version>1.2.25</reload4j.version>
     <servlet-api.version>4.0.1</servlet-api.version>
     <slf4j.version>2.0.16</slf4j.version>