start-bluos-core: make sure BLUEOS_DISABLE_SERVICES is always set #5678

Job	Run time
python-tests	2m 41s
python-tests	2m 41s
frontend-tests	1m 15s
frontend-tests	1m 15s
deploy-docker-images (bootstrap, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	1m 15s
deploy-docker-images (bootstrap, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	1m 15s
deploy-docker-images (core, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	15m 37s
deploy-docker-images (core, blueos, linux/arm/v7,linux/arm64/v8,linux/amd64)	15m 37s
deploy-raspberry-image (blueos-ci, linux/arm/v7, bookworm, raspios_lite_armhf/images/raspios_lite...	26m 14s
deploy-raspberry-image (blueos-ci, linux/arm/v7, bookworm, raspios_lite_armhf/images/raspios_lite...	26m 14s
deploy-raspberry-image (pi4-builder2, linux/arm/v7, bullseye, raspios_lite_armhf/images/raspios_l...	12m 38s
deploy-raspberry-image (pi4-builder2, linux/arm/v7, bullseye, raspios_lite_armhf/images/raspios_l...	25m 11s
deploy-raspberry-image (pi5-builder, linux/arm64/v8, bookworm, raspios_lite_arm64/images/raspios_...	16m 21s
deploy-raspberry-image (pi5-builder, linux/arm64/v8, bookworm, raspios_lite_arm64/images/raspios_...	16m 21s
	2h 44m 35s

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