Polish backend for soft-required validation #14252

Job	Run time
End-to-end tests, chromium	13m 53s
End-to-end tests, firefox	17m 0s
End-to-end tests, webkit	12m 22s
Set up docker build 'dynamic' env variables	1s
Run the Django test suite	7m 47s
Build and check documentation	3m 28s
Run the Django test suite in reverse	5m 44s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 45s
docker_build (production) / Build image	2m 51s
Scan docker image	2m 7s
Simulate upgrading instances (2.7.4)	1m 22s
Simulate upgrading instances (2.7.8)	1m 21s
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 41s

Provide feedback