Publish stable releases to the stable OLM channel

[tiraboschi]

What this PR does / why we need it: Fix the release automation to always publish stable releases to the stable OLM channel.

Fixes: https://github.com/kubevirt/hyperconverged-cluster-operator/issues/2954

Reviewer Checklist

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• [ ] PR Message
• [ ] Commit Messages
• [ ] How to test
• [ ] Unit Tests
• [ ] Functional Tests
• [ ] User Documentation
• [ ] Developer Documentation
• [ ] Upgrade Scenario
• [ ] Uninstallation Scenario
• [ ] Backward Compatibility
• [ ] Troubleshooting Friendly

Jira Ticket:

NONE

Release note:

Publish stable releases to stable OLM channel again

[coveralls]

Pull Request Test Coverage Report for Build 9661237929

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 85.839%

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Totals
Change from base Build 9658355966:	0.0%
Covered Lines:	5219
Relevant Lines:	6080

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💛 - Coveralls

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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