🐛 [#4772] Add migration to set select dataType to string #14375

Job	Run time
Set up docker build 'dynamic' env variables	1s
Build and check documentation	3m 53s
End-to-end tests, chromium	13m 26s
Run the Django test suite	7m 39s
End-to-end tests, firefox	16m 25s
Run the Django test suite in reverse	5m 2s
End-to-end tests, webkit	11m 54s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 49s
docker_build (production) / Build image	2m 44s
Scan docker image	2m 8s
Simulate upgrading instances (2.7.4)	1m 19s
Simulate upgrading instances (2.7.8)	1m 17s
Check for unexepected OAS changes	6s
Validate OAS	11s
Generate Postman collection from OAS	13s
Generate SDKs from OAS	31s
Push Docker image	0s
update-docker-readme	0s
	1h 9m 38s

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