Draft: SKIP UPDATE CHECK add gcpe subchart, update renovate

General MR

Summary

This adds GCPE as a configurable subchart: https://repo1.dso.mil/big-bang/product/maintained/gitlab-ci-pipelines-exporter

Relevant logs/screenshots

Linked Issue

big-bang/product/maintained/gitlab-ci-pipelines-exporter#12 (closed)

Upgrade Notices

N/A