semantic-release-bot 286eaafc93 chore(release): 5.4.0 [skip ci]

# [5.4.0](https://github.com/saltstack-formulas/prometheus-formula/compare/v5.3.0...v5.4.0) (2021-02-10)

### Bug Fixes

* **clean:** include repo clean too ([782dd45](782dd45452))

### Continuous Integration

* **commitlint:** ensure `upstream/master` uses main repo URL [skip ci] ([e0f6a8b](e0f6a8baeb))
* **gitlab-ci:** add `rubocop` linter (with `allow_failure`) [skip ci] ([7d80e4a](7d80e4afc1))
* **gitlab-ci:** use GitLab CI as Travis CI replacement ([4f290c2](4f290c2dde))
* **pre-commit:** update hook for `rubocop` [skip ci] ([60ec8e5](60ec8e514d))

### Documentation

* **archive:** update pillar.example with env var for mysqld_exporter ([1631137](1631137b1b))

### Features

* **archive:** managing env vars in systemd unit ([4e60b17](4e60b17741))

### Tests

* **archive:** add env vars tests ([018e759](018e759183))