Fix lost_and_found triggering on doors

src/main/resources/data/dimdoors/advancements/dimdoors/lost_and_found.json

@@ -23,7 +23,9 @@
         "location": {
           "dimension": "dimdoors:dungeon_pockets",
           "block": {
-            "block": "minecraft:chest"
+            "blocks": [
+              "minecraft:chest"
+            ]
           }
         },
         "item": {}
@@ -35,4 +37,4 @@
       "open_chest"
     ]
   ]
-}
+}