Update plugin com.gradleup.shadow to v8.3.8 (#18)

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

Author: renovate[bot]

settings.gradle.kts

@@ -18,7 +18,7 @@ dependencyResolutionManagement {
     versionCatalogs {
         create("libs") {
             version("publishdata", "1.4.0")
-            version("shadow", "8.3.7")
+            version("shadow", "8.3.8")
             version("pluginYml", "0.6.0")
             version("runPaper", "2.3.1")