Bump the java group in /java with 2 updates (#79)

Bumps the java group in /java with 2 updates: [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) and [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin).


Updates `com.google.protobuf:protobuf-java` from 4.29.0 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)

Updates `org.apache.maven.plugins:maven-javadoc-plugin` from 3.11.1 to 3.11.2
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.11.1...maven-javadoc-plugin-3.11.2)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java
- dependency-name: org.apache.maven.plugins:maven-javadoc-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java
...

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

java/pom.xml

@@ -15,7 +15,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
         <grpc.version>1.68.2</grpc.version>
-        <protobuf.version>4.29.0</protobuf.version>
+        <protobuf.version>4.29.1</protobuf.version>
     </properties>
 
     <dependencies>
@@ -116,7 +116,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.11.1</version>
+                <version>3.11.2</version>
                 <configuration>
                     <excludePackageNames>com.google.protobuf</excludePackageNames>
                 </configuration>