ci-operator: Use * to exclude images from promotion

[danilo-gemoli]

Documenting the new feature with an example: openshift/ci-docs#538.
It is now possible to use * in the promotion.exclude_images stanza to exclude all images from being promoted.

[danilo-gemoli]

/test e2e

[Prucek]

/test e2e

[openshift-ci-robot]

/test remaining-required

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danilo-gemoli, Prucek

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8d9f864 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8d9f864 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8d9f864 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8d9f864 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 3b29d56 and 1 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 3b29d56 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 3b29d56 and 2 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8bf5e30 and 1 for PR HEAD 401b15b in total

[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 8bf5e30 and 2 for PR HEAD 401b15b in total

[openshift-ci]

@danilo-gemoli: 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/breaking-changes	401b15b	link	false	/test breaking-changes

Full PR test history. Your PR dashboard.

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[danilo-gemoli]

/override ci/prow/e2e

[openshift-ci]

@danilo-gemoli: Overrode contexts on behalf of danilo-gemoli: ci/prow/e2e

In response to this:

/override ci/prow/e2e

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-sigs/prow repository.