[7.17] Fix task dependency setup for packaging tests (elastic#123994)

Author: breskeby

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/test/DistroTestPlugin.java

@@ -336,8 +336,10 @@ private static void configureVMWrapperTasks(
                 t.setDescription("Runs " + destructiveTaskName.split("\\.", 2)[1] + " tests within vagrant");
                 t.setTaskName(destructiveTaskName);
                 t.extraArg("-D'" + IN_VM_SYSPROP + "'");
-                t.dependsOn(depsTasks.get(destructiveTaskName));
-                t.dependsOn(additionalDeps);
+                TaskProvider<?> taskDependencies = depsTasks.get(destructiveTaskName);
+                if (taskDependencies != null) {
+                    t.dependsOn(taskDependencies);
+                }
                 t.setLogLevel(project.getGradle().getStartParameter().getLogLevel().toString());
                 t.setExtension(project.getExtensions().findByType(VagrantExtension.class));
                 t.setService(project.getExtensions().getByType(VagrantMachine.class));