[#3558] Add an extra `identifier` field to account for analytics #10050

Job	Run time
Build and check documentation	1m 55s
End-to-end tests, chromium	8m 29s
End-to-end tests, firefox	11m 3s
Run the Django test suite	10m 21s
End-to-end tests, webkit	9m 8s
Set up docker build 'dynamic' env variables	1s
Run the Django test suite in reverse	8m 9s
docker_build (production) / Build image	8m 28s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	7m 40s
Check for unexepected OAS changes	12s
Generate SDKs from OAS	36s
Generate Postman collection from OAS	20s
Validate OAS	27s
Push Docker image	0s
update-docker-readme	0s
	1h 6m 49s

Provide feedback