tests: Add crate-level attribute to silence "dead-code" warnings
When enabling the `mshv` feature, we skip quite some tests and
hence have known dead-code. This annotation silences dead-code
related warnings for our quality workflow to pass.
// SPDX-License-Identifier: Apache-2.0
//
+// When enabling the `mshv` feature, we skip quite some tests and
+// hence have known dead-code. This annotation silences dead-code
+// related warnings for our quality workflow to pass.
+#![allow(dead_code)]
+
#[macro_use]
extern crate lazy_static;
