Ensure getInstallProperties always returns a value

[AlanGreene]

Changes

With React Query 4+ a query function must always either return a value or throw an error. The install properties getter was previously returning undefined which meant React Query 3 would keep using the placeholder data. That's no longer the case so we have to return the default in this case.

/kind misc

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[AlanGreene]

/hold

[tekton-robot]

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[AlanGreene]

/hold cancel