Restoring backup in Kubernetes with self signed certificate


I am currently trying to restore a backup from a previous gitlab instance to a new Kubernetes deployment. Both instances are running 11.5.2 CE edition. To perform the backup restoration I have to execute the backup-utility command through the task-runner pod. A problem appears when running the command however as I am using an internally signed certificate that the GitLab task runner does not trust, so it fails the backup restoration.

Is there any nice non-hacky way to add the CA I am using to the list of trusted ones to get past the issue?