fix(deps): update dependency net.kyori:adventure-platform-fabric to v6.8.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -12,7 +12,7 @@ runtask = "3.0.2"
 
 miniplaceholders = "3.1.0"
 adventure = "4.25.0"
-adventurefabric = "6.7.0"
+adventurefabric = "6.8.0"
 
 fabric-loader = "0.18.1"
 fabric-api = "0.135.0+1.21.10"