Expose TLS support for rails metrics exporters
Summary
Expose chart config to allow the TLS certs to be provided to the sidekiq and webservice app's exporters. This is to expose config for the work being done in: gitlab-org/gitlab!89648 (merged)
See !2496 (merged) for a recent example on a similar config we enabled for puma SSL settings.
And also see gitlab-org/omnibus-gitlab!6155 (merged) for how these exact settings are being exposed in omnibus.
Edited by DJ Mountney