[#2863] When retrieving eHerkenning-cases, filter on either vestigingsnummer or rsin/kvk, but not both #8137

Job	Run time
Build and check documentation	1m 36s
Run the Django test suite (main)	20m 8s
Run the Django test suite (elastic)	5m 17s
Run the Django test suite (openklant)	2m 49s
Check that documentation for configuration steps is up-to-date	1m 15s
End-to-end tests, chromium	4m 19s
End-to-end tests, firefox	4m 16s
End-to-end tests, webkit	4m 39s
End-to-end tests, msedge	4m 32s
Upload coverage information to codecov	16s
Build (and push) Docker image	1m 43s
	50m 50s

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