Helper: fix pydantic v2 migration #7544

Job	Run time
frontend-tests	2m 34s
python-tests	3m 30s
deploy-docker-images (bootstrap, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	2m 32s
deploy-docker-images (core, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	8m 49s
deploy-raspberry-image	0s
	17m 25s

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