Update base os image to centos 8 and go version to 1.14

[marun]

Apparently this is required to get library-go building with golang 1.14, which is required by the 1.19 bump for library-go: openshift/library-go#872

[sttts]

/lgtm
/approve

[sttts]

/retest

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: marun, sttts

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• ci-operator/config/openshift/library-go/OWNERS [sttts]

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[marun]

/test step-registry-metadata

[petr-muller]

/refresh

[openshift-ci-robot]

@marun: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/prow/pj-rehearse	57444ee	link	/test pj-rehearse

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[openshift-ci-robot]

@marun: Updated the ci-operator-master-configs configmap in namespace ci at cluster app.ci using the following files:

• key openshift-library-go-master.yaml using file ci-operator/config/openshift/library-go/openshift-library-go-master.yaml

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In response to this:

Apparently this is required to get library-go building with golang 1.14, which is required by the 1.19 bump for library-go: openshift/library-go#872

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.