Gitlab-ci does not display environment variable

Question

We  have set an Env variable: MY_ENV_VAR (in Project CI/CD Settings menu)

I see a message with says the environment variable is prefixed by K8S_SECRET_

My .gitlab-ci.yml:

<!--[if gte mso 9]> Normal 0 false false false EN-US X-NONE X-NONE <![endif]--><!--[if gte mso 9]> <![endif]--><!--[if gte mso 10]>

<![endif]-->