Update plugin shadow to v8.3.8 (#369)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -25,4 +25,4 @@ tika = "org.apache.tika:tika-core:3.2.0"
 
 [plugins]
 runtime = "com.dua3.gradle.runtime:1.13.1-patch-1"
-shadow = "com.gradleup.shadow:8.3.7"
+shadow = "com.gradleup.shadow:8.3.8"