Codeowners file updated to add ospo team

[ieribo]

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✔️ Checklist

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• Fixes #REPLACE_WITH_ISSUE_NUMBER
• I have run npm version [patch, minor, major] (considering (semantic versioning)[https://semver.org/#summary)) for a new release if needed
• If the package version changed, this PR's title is prefixed with release([VERSION]):
• I have added typedoc-style comments to my changes to improve the developer experience

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