chore: Update dependency me.clip:placeholderapi to v2.12.0 (#418)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ paperlib = "1.0.8"
 # Plugins
 luckperms = "5.5"
 worldedit = "7.4.0"
-placeholderapi = "2.11.7"
+placeholderapi = "2.12.0"
 axiompaper = "4.0.1-1.21.1"
 # Third Party
 annotations = "26.0.2-1"