Bump com.gradleup.shadow from 8.3.9 to 9.3.1

Bumps com.gradleup.shadow from 8.3.9 to 9.3.1.

---
updated-dependencies:
- dependency-name: com.gradleup.shadow
  dependency-version: 9.3.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'archunit.base-conventions'
-    id 'com.gradleup.shadow' version '8.3.9' apply false
+    id 'com.gradleup.shadow' version '9.3.1' apply false
     id 'com.github.spotbugs' version '6.4.8' apply false
     id "io.github.gradle-nexus.publish-plugin" version "2.0.0" apply false
     id "com.diffplug.spotless" version "8.2.0" apply false