De specificatie kan niet geladen worden.
URL: https://referentie.test.datastelsel.nl/rvva/api/v1/openapi.yaml
HTTPSConnectionPool(host='referentie.test.datastelsel.nl', port=443): Max retries exceeded with url: /rvva/api/v1/openapi.yaml (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate (_ssl.c:1006)')))