fix: Prevents succesful builds with bad dependencies.

fixes GradleUp#915

src/main/groovy/com/github/jengelman/gradle/plugins/shadow/tasks/ShadowCopyAction.groovy

@@ -122,6 +122,7 @@ class ShadowCopyAction implements CopyAction {
                                 e.cause.message, documentationRegistry.getDslRefForProperty(Zip, "zip64"))
                 )
             }
+            throw e
         }
         return WorkResults.didWork(true)
     }