chore(release): 4.15.2 [skip ci]

## [4.15.2](https://gitlab.com/to-be-continuous/golang/compare/4.15.1...4.15.2) (2026-01-06)

### Bug Fixes

* **bash mode:** unmask errors in shell pipelines with 'set -o pipefail' ([6bb1accd](https://gitlab.com/to-be-continuous/golang/commit/6bb1accd3f528462f29130e15d7fbad90a8c77c6))