chore(release): 1.4.0-beta.6 [skip ci]

# [1.4.0-beta.6](https://gitlab.com/sibmip/gateway/compare/1.4.0-beta.5...1.4.0-beta.6) (2023-03-11)

### Bug Fixes

* **issue-72:** Pearson correlation algorithm ([b46f0ebc](https://gitlab.com/sibmip/gateway/commit/b46f0ebc77e9c9578c199ee9c2a28b0cb5ec4726))