feat: add bounded binary API request bodies

crates/api-macros/tests/ui/multiple_binary_bodies.rs

@@ -0,0 +1,15 @@
+use api_macros::api;
+
+pub struct Response;
+
+#[api]
+pub trait MultipleBinaryBodies {
+    #[post("/payload")]
+    async fn upload(
+        &self,
+        #[binary] first: api_macros::BinaryBody,
+        #[binary] second: api_macros::BinaryBody,
+    ) -> Response;
+}
+
+fn main() {}