Use new OAS workflow in CI for all components

[stevenbal]

Sergei added a workflow oas.yml (#22) to replace separate OAS workflows. I would like to have this in use for all components

• Open Zaak Replace OAS workflows with single WF open-zaak/open-zaak#2028
• Open Notificaties 👷 [maykinmedia/open-api-workflows#24] replace OAS… open-zaak/open-notificaties#284
• Objects Replace OAS workflows with single WF objects-api#595
• Objecttypes Replace OAS workflows with single WF objecttypes-api#175
• Open Klant Replace OAS workflows with single WF open-klant#421
• Referentielijsten Replace OAS workflows with single WF referentielijsten#81
• Open Product Replace OAS workflows with single WF open-product#142