Setup Prometheus for the AppliedML team
<!-- This template is for GitLab Team Members seeking support of SRE where there isn't an existing `request-*` template available. Please fill out the details below. --> **Details** - Point of contact for this request: [+ @AndrasHerczeg @srayner +] - If a call is needed, what is the proposed date and time of the call: [+ Flexible +] - Additional call details (format, type of call): [+ Flexible +] **SRE Support Needed** [+ Support Request Details +] At the AppliedML team we would like to use Prometheus for monitoring; we're in the process of spinning up our own instance in our GCP project (`unreview-poc-390200e5`) but we would also like to export the metrics to the GitLab Prometheus instance; we would like to know what would be the required next steps to make this happen. This is a follow-up to a conversation in the infrastructure lounge ([link](https://gitlab.slack.com/archives/CB3LSMEJV/p1655411923762469)) <!-- please do not edit the below -->
issue