Patch notes v0.8.4512261

# Enemies
- Tomb Guardian: fix an issue that multiple Tomb Guardian might appear during activation.
- Treasure Chest Spirit: fix an issue that its attack would drain life from targets that have no flesh or blood.
# BOSS
- Arboreal Maiden: fix an issue that multiple Lantern Keepers would appear after defeating Arboreal Maiden; fix an issue that Grass Spirit can be summoned even when Arboreal Maiden defeated.
- Arrested Spirit: fix a drop issue.
# Misc
- Fix an issue where the information of the ineffective set was displayed in the Devil Slaying Log.
- Prevent some test items from being created with the console.