[redhat-chai-bot]

This PR adds 6 missing Cincinnati channel files for OKD SCOS releases that were promoted to the release controller but did not have corresponding graph-data channel entries.

Streams analyzed

• 5-scos-next — all Accepted tags already covered by candidate-5.0.yaml and candidate-5.1.yaml
• 5-scos-stable — all Accepted tags already covered by stable-5.0.yaml
• 4-scos-next — missing channel files for 4.21 and 4.22 candidate releases
• 4-scos-stable — missing channel files for 4.16, 4.17, 4.18, and 4.19 stable releases

New channel files

Stable channels (from 4-scos-stable Accepted tags)

File	Versions	Previous entry
stable-4.16.yaml	4.16.0-okd-scos.0 – .1 (2 releases)	None (oldest SCOS stable)
stable-4.17.yaml	4.17.0-okd-scos.0 – .3 (4 releases)	4.16.0-okd-scos.1
stable-4.18.yaml	4.18.0-okd-scos.0 – .10 (11 releases)	4.17.0-okd-scos.3
stable-4.19.yaml	4.19.0-okd-scos.7 – .19 (13 releases)	4.18.0-okd-scos.10

Candidate channels (from 4-scos-next Accepted tags)

File	Versions	Previous entry
candidate-4.21.yaml	11 ec releases (ec.2 – ec.19)	None (oldest candidate in 4-scos-next)
candidate-4.22.yaml	12 ec releases (ec.1 – ec.16)	4.21.0-okd-scos.ec.19

What was NOT changed

• No existing channel files were modified
• blocked-edges/, deploy/, raw/ directories were not touched
• All 6 existing channel files (candidate-5.0, candidate-5.1, stable-4.20, stable-4.21, stable-4.22, stable-5.0) are already up to date with their respective release controller Accepted tags

Data source

All release data was fetched from the OKD release controller at amd64.origin.releases.ci.openshift.org/api/v1/releasestream/*/tags. Only tags with phase Accepted were included.

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AI-generated. Review for accuracy.

Automated by scheduled task okd_cincinnati_graph_data_sync (instructions: config/groups/openshift-core/personas/okd_assistant/scheduled_tasks/okd_cincinnati_graph_data_sync.md, run: ff6a843d9cfb43c29dc3d2961ad433c4, commit: 54c682caf)