[#2709] Add beheerhandleiding entry or ZGW import/export #8197

Job	Run time
Build and check documentation	1m 29s
End-to-end tests, chromium	4m 17s
Check that documentation for configuration steps is up-to-date	1m 22s
End-to-end tests, firefox	4m 41s
Run the Django test suite (main)	21m 0s
End-to-end tests, webkit	4m 47s
Run the Django test suite (elastic)	5m 39s
End-to-end tests, msedge	4m 24s
Run the Django test suite (openklant)	3m 7s
Build (and push) Docker image	1m 51s
Upload coverage information to codecov	19s
	52m 56s

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