chore: grafana internal credentials

[erikburt]

Description

Updating to Grafana references for migration to self-hosted.

Steps to Test

Tested prior to migration.

Checklist

• This PR has an accompanying changeset if needed.

---

Post-Merge

• Delete repo GRAFANA-CLOUD-* credentials

RE-2240

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.29%. Comparing base (52b6d04) to head (2c092a1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #70   +/-   ##
=======================================
  Coverage   88.29%   88.29%           
=======================================
  Files         243      243           
  Lines        4433     4433           
  Branches      759      759           
=======================================
  Hits         3914     3914           
  Misses        498      498           
  Partials       21       21           

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[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube