mandatory field in neoforge.mods.toml is deprecated

[BarionLP]

Just went through my logs looking for something and found this:

Mod 'chunky' uses deprecated 'mandatory' field in the dependency declaration for 'neoforge'. Use the 'type' field and 'required'/'optional' instead

to fix this change mandatory=true to type="required" for all dependencies listed in neoforge.mods.toml