Update go builder to 1.21 for stolostron/prometheus and stolostron/prometheus-operator

[coleenquadros]

Part of update task for prometheus - https://issues.redhat.com/browse/ACM-1782

[openshift-ci-robot]

[REHEARSALNOTIFIER]
@coleenquadros: the pj-rehearse plugin accommodates running rehearsal tests for the changes in this PR. Expand 'Interacting with pj-rehearse' for usage details. The following rehearsable tests have been affected by this change:

Test name	Repo	Type	Reason
pull-ci-stolostron-prometheus-release-2.11-common-test	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-release-2.11-images	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-release-2.11-pr-image-mirror	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-release-2.11-react-app-test	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-release-2.11-sonar-pre-submit	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-release-2.11-vendor	stolostron/prometheus	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-operator-release-2.11-images	stolostron/prometheus-operator	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-operator-release-2.11-pr-image-mirror-prometheus-config-reloader	stolostron/prometheus-operator	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-operator-release-2.11-pr-image-mirror-prometheus-operator	stolostron/prometheus-operator	presubmit	Ci-operator config changed
pull-ci-stolostron-prometheus-operator-release-2.11-test	stolostron/prometheus-operator	presubmit	Ci-operator config changed

Prior to this PR being merged, you will need to either run and acknowledge or opt to skip these rehearsals.

Interacting with pj-rehearse

Comment: /pj-rehearse to run up to 5 rehearsals
Comment: /pj-rehearse skip to opt-out of rehearsals
Comment: /pj-rehearse {test-name}, with each test separated by a space, to run one or more specific rehearsals
Comment: /pj-rehearse more to run up to 10 rehearsals
Comment: /pj-rehearse max to run up to 25 rehearsals
Comment: /pj-rehearse auto-ack to run up to 5 rehearsals, and add the rehearsals-ack label on success
Comment: /pj-rehearse abort to abort all active rehearsals

Once you are satisfied with the results of the rehearsals, comment: /pj-rehearse ack to unblock merge. When the rehearsals-ack label is present on your PR, merge will no longer be blocked by rehearsals.
If you would like the rehearsals-ack label removed, comment: /pj-rehearse reject to re-block merging.

[coleenquadros]

/pj-reherase

[thibaultmg]

/lgtm

[saswatamcode]

/lgtm

[douglascamata]

/lgtm

[coleenquadros]

/pj-rehearse ack

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: coleenquadros, douglascamata, saswatamcode, thibaultmg

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:

• ci-operator/config/stolostron/prometheus/OWNERS [douglascamata,saswatamcode]
• ci-operator/config/stolostron/prometheus-operator/OWNERS [douglascamata,saswatamcode]

Approvers can indicate their approval by writing /approve in a comment
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[openshift-ci-robot]

@coleenquadros: now processing your pj-rehearse request. Please allow up to 10 minutes for jobs to trigger or cancel.

[openshift-ci]

@coleenquadros: all tests passed!

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