fix: semantic releases

This fixes the semantic releases for this project, which have been broken for the past month.

The problem was that when we moved over to the common semantic release task (https://gitlab.com/gitlab-com/gl-infra/common-ci-tasks/-/blob/main/semantic-release.md), it stopped picking up the configuration, which was looking for a different file.

Also, the newer CI config has a different format, which was updated at some point.