Make test more flexible, sometimes this returns errors instead of invalid

        let bad_data = b"Some Crypto text";

        ctx.verify_init().unwrap();

        let valid = ctx.verify(bad_data, &signature).unwrap();

        assert!(!valid);

        let valid = ctx.verify(bad_data, &signature);

        assert!(matches!(valid, Ok(false) | Err(_)));

        assert!(ErrorStack::get().errors().is_empty());

    }