Workaround books no longer sending change block for lecterns.

Fixes #2124.

Author: wizjany

worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/util/Materials.java

@@ -1495,6 +1495,9 @@ public static boolean isToolApplicable(Material toolMaterial, Material targetMat
                     case SUSPICIOUS_GRAVEL, SUSPICIOUS_SAND -> true;
                     default -> false;
                 };
+            case WRITTEN_BOOK:
+            case WRITABLE_BOOK:
+                return targetMaterial == Material.LECTERN;
             default:
                 return false;
         }