Upgrade grafana and prometheus versions to latest available

[etsauer]

• [x] I have read Pelorus Contributing guidelines

Linked Issues

resolves #1156

Description

This change upgrades the prometheus and grafana operator dependencies to the latest versions currently available in OperatorHub:

• Prometheus Operator v4.10.0
• Grafana Operator v5.12.0

Testing Instructions

1. Deploy PR build of the operator, make sure install goes well.
2. Need to find some way to test upgrades in an instance that contains data

[github-actions[bot]]

Test images available! 🧪🚀 To test operator with them, run

operator-sdk run bundle \
quay.io/pelorus/rc-pelorus-operator-bundle:vpr1157-e7062a4 \
--namespace test-pelorus-operator

To clean up environment afterwards, run

operator-sdk cleanup pelorus-operator --namespace test-pelorus-operator

[github-actions[bot]]

Test images available! 🧪🚀 To test operator with them, run

operator-sdk run bundle \
quay.io/pelorus/rc-pelorus-operator-bundle:vpr1157-7d7b88f \
--namespace test-pelorus-operator

To clean up environment afterwards, run

operator-sdk cleanup pelorus-operator --namespace test-pelorus-operator

[github-actions[bot]]

Test images available! 🧪🚀 To test operator with them, run

operator-sdk run bundle \
quay.io/pelorus/rc-pelorus-operator-bundle:vpr1157-34d9eef \
--namespace test-pelorus-operator

To clean up environment afterwards, run

operator-sdk cleanup pelorus-operator --namespace test-pelorus-operator

[openshift-ci[bot]]

@etsauer: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/4.13-e2e-openshift	cf6413c2bda0d045845e4a6a9cb3d6af38a2307d	link	true	/test 4.13-e2e-openshift

Full PR test history. Your PR dashboard.

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[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mpryc

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/dora-metrics/pelorus/blob/master/OWNERS)~~ [mpryc] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment