TektonConfig: keep-since not documented

[fgiloux]

Expected Behavior

have keep-since documented here: https://tekton.dev/docs/operator/tektonconfig/

Actual Behavior

No mention of keep-since in the documentation

Additional Info

keep-since has been part of TektonConfig API for a while: https://github.com/tektoncd/operator/blob/main/pkg/apis/operator/v1alpha1/tektonconfig_types.go#L58-L61

[sounix000]

JIRA issue: https://issues.redhat.com/browse/RHDEVDOCS-4312 Discussion thread: https://coreos.slack.com/archives/CSPS1077U/p1655202587530059

[tekton-robot]

Issues go stale after 90d of inactivity. Mark the issue as fresh with /remove-lifecycle stale with a justification. Stale issues rot after an additional 30d of inactivity and eventually close. If this issue is safe to close now please do so with /close with a justification. If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle stale

Send feedback to tektoncd/plumbing.

[tekton-robot]

Stale issues rot after 30d of inactivity. Mark the issue as fresh with /remove-lifecycle rotten with a justification. Rotten issues close after an additional 30d of inactivity. If this issue is safe to close now please do so with /close with a justification. If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle rotten

Send feedback to tektoncd/plumbing.

[avinal]

/close Close as completed