Feature/4908 json registration backend #14933

Job	Run time
Run the Django test suite	8m 26s
Set up docker build 'dynamic' env variables	1s
Build and check documentation	3m 17s
End-to-end tests, chromium	13m 59s
End-to-end tests, firefox	17m 17s
End-to-end tests, webkit	11m 56s
Run the Django test suite in reverse	5m 33s
docker_build (production) / Build image	2m 50s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 53s
Simulate upgrading instances (2.7.4)	1m 20s
Simulate upgrading instances (2.7.8)	1m 21s
Scan docker image	2m 11s
Check for unexepected OAS changes	8s
Generate SDKs from OAS	30s
Validate OAS	13s
Generate Postman collection from OAS	9s
Push Docker image	0s
update-docker-readme	0s
	1h 12m 4s

Provide feedback