Feature/4908 json registration backend #14958

Job	Run time
Set up docker build 'dynamic' env variables	1s
Build and check documentation	3m 22s
Run the Django test suite	7m 47s
End-to-end tests, chromium	13m 46s
Run the Django test suite in reverse	5m 41s
End-to-end tests, firefox	17m 1s
End-to-end tests, webkit	12m 11s
docker_build (production) / Build image	2m 46s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 42s
Simulate upgrading instances (2.7.4)	1m 42s
Scan docker image	2m 8s
Simulate upgrading instances (2.7.8)	1m 20s
Check for unexepected OAS changes	0s
Validate OAS	0s
Generate SDKs from OAS	0s
Generate Postman collection from OAS	0s
Push Docker image	0s
update-docker-readme	0s
	1h 10m 27s

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