[master] LOG-3985: make spec.visualization.kibana.replicas optional on Kibana spec type

[openshift-cherrypick-robot]

This is an automated cherry-pick of #1967

/assign vparfonov

[openshift-ci-robot]

@openshift-cherrypick-robot: An error was encountered cloning bug for cherrypick for bug LOG-3985 on the Jira server at https://issues.redhat.com/. No known errors were detected, please see the full error message for details.

Full error message.

request failed. Please analyze the request body for more details. Status code: 400: {"errorMessages":["Number value expected as the Sprint id."],"errors":{}}

Please contact an administrator to resolve this issue, then request a bug refresh with /jira refresh.

In response to this:

This is an automated cherry-pick of #1967

/assign vparfonov

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[vparfonov]

/lgtm

[jcantrill]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jcantrill, openshift-cherrypick-robot

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 75a9db1 and 2 for PR HEAD 3053c22 in total

[vparfonov]

/retest

[openshift-ci]

@openshift-cherrypick-robot: The following tests 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/functional-target	3053c22	link	false	/test functional-target
ci/prow/e2e-ocp-target-minus-two	3053c22	link	false	/test e2e-ocp-target-minus-two
ci/prow/e2e-ocp-target-minus-one	3053c22	link	false	/test e2e-ocp-target-minus-one

Full PR test history. Your PR dashboard.

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. I understand the commands that are listed here.

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 211f02a and 1 for PR HEAD 3053c22 in total