ButcherCraft, another 1.19.x Farmer's Delight addon, has a different stock recipe which also accepts forge:vegetables. I re-enabled the ability to make stock by removing the #forge:vegetables tag from the makes_stock.json shipped in the mod's .jar file, but it shouldn't be too difficult to detect whether ButcherCraft is loaded and either remove vegetables from the makes_stock tag or load a different value for that tag.

I'm happy to work on this issue as well if it's not something that can be done right away.

Butchercraft stock is being removed in the next update.