message: Use the exmample test key for integration tests
  TODO: generate a key on the fly during the test
diff: @@ -59,7 +59,7 @@ impl Northstar {
  "test".into(),
  config::Repository {
  dir: test_repositority,
  - key: None,
  + key: Some(PathBuf::from("examples/keys/northstar.pub")),
  },
  );
  