Feature/4908 json registration backend #14907

Job	Run time
Build and check documentation	3m 3s
End-to-end tests, chromium	13m 59s
Run the Django test suite	8m 35s
End-to-end tests, firefox	16m 32s
Run the Django test suite in reverse	5m 43s
End-to-end tests, webkit	12m 43s
Set up docker build 'dynamic' env variables	1s
docker_build (production) / Build image	2m 47s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 48s
Simulate upgrading instances (2.7.4)	1m 22s
Scan docker image	2m 24s
Simulate upgrading instances (2.7.8)	1m 29s
Check for unexepected OAS changes	6s
Generate SDKs from OAS	31s
Generate Postman collection from OAS	13s
Validate OAS	12s
Push Docker image	0s
update-docker-readme	0s
	1h 12m 28s

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