T1.5: Migrate emit/parse sites to v2 wire format

crates/wzp-relay/build.rs

@@ -7,9 +7,7 @@ fn main() {
         .output();
 
     let hash = match output {
-        Ok(o) if o.status.success() => {
-            String::from_utf8_lossy(&o.stdout).trim().to_string()
-        }
+        Ok(o) if o.status.success() => String::from_utf8_lossy(&o.stdout).trim().to_string(),
         _ => "unknown".to_string(),
     };