For completeness this is what I now have:
discovery:
ignore: philips_hue
hue:
bridges:
- host: IP_ADDRESS_OF_HUE_BRIDGE
For completeness this is what I now have:
discovery:
ignore: philips_hue
hue:
bridges:
- host: IP_ADDRESS_OF_HUE_BRIDGE
I have more or less the same, disabling Hue in discovery works fine.