Update dependency com.github.TechFortress:GriefPrevention to v18 (#3336)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ snakeyaml = "2.2"
 # Plugins
 dummypermscompat = "1.10"
 worldguard-bukkit = "7.0.14"
-griefprevention = "17.0.0"
+griefprevention = "18.0.0"
 griefdefender = "2.1.0-SNAPSHOT"
 residence = "4.5._13.1"
 towny = "0.101.2.5"