Update dependency com.gradleup.shadow to v9.3.1

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ decentholograms = "2.9.9"
 paperlib = "1.0.8"
 
 # Gradle plugins
-shadow = "9.3.0"
+shadow = "9.3.1"
 bukkityml = "0.6.0"
 minotaur = "2.8.10"