Helper: fix pydantic v2 migration #7547

Job	Run time
frontend-tests	2m 7s
python-tests	3m 44s
deploy-docker-images (core, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	11m 7s
deploy-docker-images (bootstrap, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	3m 24s
deploy-raspberry-image (pi5-builder, linux/arm64/v8, bookworm, raspios_lite_arm64/images/raspios_...	25m 29s
deploy-raspberry-image (blueos-ci, linux/arm/v7, bookworm, raspios_lite_armhf/images/raspios_lite...	46m 46s
deploy-raspberry-image (pi4-builder2, linux/arm/v7, bullseye, raspios_lite_armhf/images/raspios_l...	47m 21s
	2h 19m 58s

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