Upstream has released updates that appear to apply and compile correctly
Paper Changes:
PaperMC/Paper@1cda66e Hotfix Entity isInRain reobf issue
PaperMC/Paper@61768e0 [ci skip] Remove no longer needed mappings change
PaperMC/Paper@e035fd7 Updated Upstream (Bukkit/CraftBukkit/Spigot)
PaperMC/Paper@c215ce1 [ci skip] cleanup patch diff from last commit