Refactor Camunda registration options + drop RJSF #14378

Job	Run time
Run the Django test suite	7m 39s
Build and check documentation	4m 44s
End-to-end tests, chromium	13m 26s
Run the Django test suite in reverse	5m 9s
End-to-end tests, firefox	16m 27s
End-to-end tests, webkit	12m 16s
Set up docker build 'dynamic' env variables	1s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 47s
docker_build (production) / Build image	2m 47s
Scan docker image	2m 3s
Simulate upgrading instances (2.7.4)	1m 18s
Simulate upgrading instances (2.7.8)	1m 28s
Check for unexepected OAS changes	8s
Generate SDKs from OAS	32s
Validate OAS	14s
Generate Postman collection from OAS	13s
Push Docker image	0s
update-docker-readme	0s
	1h 11m 12s

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