Updated mountPath for `custom-certs` secret to match what the entrypoint on the docker image expects
The entrypoint script (on both ubuntu and alpine images) which is in charge of calling update-ca-certificates
to install the custom CA certificate, by default expects it to be mounted at /etc/gitlab-runner/certs/ca.crt
(unless overridden by setting CA_CERTIFICATES_PATH
directly).
This results in the gitlab-runner chart not working out of the box in an environment with a private certificate authority.
This PR changes the mount path of the custom-certs
secret to what is expected by default.
See: https://gitlab.com/gitlab-org/gitlab-runner/blob/master/dockerfiles/alpine/entrypoint#L4 and https://gitlab.com/gitlab-org/gitlab-runner/blob/master/dockerfiles/ubuntu/entrypoint#L4
Tested with the latest docker image: gitlab/gitlab-runner:alpine-v11.8.0