chore: address clippy warnings

Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>

tests/rust.rs

@@ -459,7 +459,7 @@ async fn rust_dynamic() -> anyhow::Result<()> {
                     .expect("failed to accept invocation")
                     .expect("unexpected end of stream");
                 assert!(rx.is_none());
-                assert_eq!(a, true);
+                assert!(a);
                 assert_eq!(b, 0xfe);
                 assert_eq!(c, 0xfeff);
                 assert_eq!(d, 0xfeff_ffff);
@@ -526,7 +526,7 @@ async fn rust_dynamic() -> anyhow::Result<()> {
                     )
                     .await
                     .expect("failed to invoke `foo.bar`");
-                assert_eq!(a, true);
+                assert!(a);
                 assert_eq!(b, 0xfe);
                 assert_eq!(c, 0xfeff);
                 assert_eq!(d, 0xfeff_ffff);