chore(release): 1.6.0

# [1.6.0](https://gitlab.mim-libre.fr/daniel.dehennin/ci-tools/compare/release/1.5.0...release/1.6.0) (2022-03-15)

### Features

* **git:** new `.git:merge-to` job template to merge a reference ([f8501fc7](f8501fc7))