[Bug] Upgrade GRPC to 1.79 to remediate CVEs

### Before Creating the Bug Report

- [x] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions).

- [x] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate.

- [x] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

### Runtime platform environment

All

### RocketMQ version

develop

### JDK Version

_No response_

### Describe the Bug

Upgraded GRPC to 1.79 to remediate CVE-2023-32731, CVE-2023-32732 and CVE-2025-55163

### Steps to Reproduce

N/A

### What Did You Expect to See?

N/A

### What Did You See Instead?

N/A

### Additional Context

_No response_

The issue names no files or tests. Start by locating the RocketMQ gRPC dependency declaration and its resolved version, then verify the upgrade to gRPC 1.79 addresses CVE-2023-32731, CVE-2023-32732, and CVE-2025-55163 without breaking the build.

Written by the indexing model from the issue text.