[CI:DOCS] Add comment re: Total Success task name

[cevich]

What type of PR is this?

/kind other

What this PR does / why we need it:

Add important comment and link reminding maintainers not to change the success-aggregation task name.

How to verify it

N/A

Which issue(s) this PR fixes:

N/A

Special notes for your reviewer:

Previously it was possible for tide to merge a PR w/ a canceled "Total Success". Please wait for openshift/release#48909 to merge. A half-day after that, the tide bot will begin respecting the "Total Success" Cirrus-CI task status. Just so long as nobody ever changes the task name 😃

Does this PR introduce a user-facing change?

None

[packit-as-a-service]

Ephemeral COPR build failed. @containers/packit-build please check.

[edsantiago]

LGTM

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cevich, edsantiago

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 [cevich]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[TomSweeneyRedHat]

LGTM

[cevich]

Thanks guys. Leaving this a draft until the openshift-ci PR merges (dunno how long that typically takes).

[cevich]

Marking this ready since the OS-CI config PR has merged. A similar same change was made in podman-CI and is well tested.

@containers/buildah-maintainers FYI: /hold is longer be required here. The tide bot will always wait for a green check on Total Success.

Edit: It will take up to 6-hours after openshift/release#48909 for the actual update to the bot to happen.

[edsantiago]

/lgtm