chore(release): 0.155.0 [skip ci]

## 0.155.0

### 🚀 Features

- feat(group_relations_export): Added Group Relations API integration ([!2508](!2508)) by [Jose Gabriel Companioni Benitez](https://gitlab.com/elC0mpa)

### 🔄 Other Changes

- chore: use local protoc plugin with buf ([!2536](!2536)) by [Timo Furrer](https://gitlab.com/timofurrer)
- chore(no-release): Change generated file comment ([!2532](!2532)) by [Oleksandr Redko](https://gitlab.com/alexandear)
- docs(no-release): Fix the comment for EnvVarGitLabContext ([!2533](!2533)) by [Oleksandr Redko](https://gitlab.com/alexandear)
- feat(client_options): Added unit tests ([!2510](!2510)) by [Jose Gabriel Companioni Benitez](https://gitlab.com/elC0mpa)

# [0.155.0](v0.154.0...v0.155.0) (2025-10-09)

### Features

* **client_options:** Added unit tests ([c1480318](c1480318))
* **group_relations_export:** Added Group Relations API integration ([956e0395](956e0395))