Runners upgraded to v6, but warning about NodeJS 20 still shown

[alexhass]

I think this is not correct. Based on docs it should use v24 only.

2 of 3 warnings are gone
See https://github.com/alexhass/syr_connect/actions/runs/23023856081

one is left behind:
See https://github.com/alexhass/syr_connect/actions/runs/23024479819