Spyglass incorrectly expects only string under "Instrument" components

[witti-stack]

goat horns allow for more complex component fields that aren't just strings under the "instrument" component tag. the code works when I run it in game, but is marked as incorrect by Spyglass.

[MulverineX]

Duplicate of https://github.com/SpyglassMC/vanilla-mcdoc/issues/14