Prometheus: update chart origin location
What does this MR do?
Move to using the upstream origin of prometheus-community
versus helm/stable
ahead of deprecation.
Now sourcing per https://artifacthub.io/packages/helm/prometheus-community/prometheus/10.0.0
Checklist
See Definition of done.
For anything in this list which will not be completed, please provide a reason in the MR discussion.
Required
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Merge Request Title and Description are up to date, accurate, and descriptive -
MR targeting the appropriate branch -
MR has a green pipeline on GitLab.com
Expected (please provide an explanation if not completing)
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Test plan indicating conditions for success has been posted and passes -
Documentation created/updated -
Tests added