Upgrade detekt plugin

The plugin maintainer has switched so we need to change the plugin URL as well
Signed-off-by: Johannes Vass <[email protected]>

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ license-plugin = { module = "io.cloudflight.license.gradle:license-gradle-plugin
 
 git-properties-plugin = { module = "com.gorylenko.gradle-git-properties:gradle-git-properties", version = "2.4.1" }
 spring-boot-plugin = { module = "org.springframework.boot:spring-boot-gradle-plugin", version = "3.1.5" }
-shadow-plugin = { module = "com.github.johnrengelman:shadow", version = "8.1.1" }
+shadow-plugin = { module = "com.gradleup.shadow:shadow-gradle-plugin", version = "8.3.5" }
 node-plugin = { module = "com.github.node-gradle:gradle-node-plugin", version = "7.0.1" }
 
 ci-info = { module = "io.cloudflight.ci.info:ci-info", version = "1.0.0" }