Update dependency com.sk89q.worldedit:worldedit-bukkit to v7.3.18 (#215)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 # Plugins
-worldedit = "7.3.17"
+worldedit = "7.3.18"
 dynmap = "3.6"
 
 # Third party