hive-c0re: fix a stale function-name reference in a comment

argus caught it in review: a comment still named is_byte_size, which
this PR's own diff renamed to normalized_byte_size.

hive-c0re/src/agent_config/resource_limits.rs

@@ -476,7 +476,7 @@ mod tests {
             parse_bytes("1.5G"),
             Some(1024 * 1024 * 1024 + 512 * 1024 * 1024)
         );
-        // Lowercase suffixes accepted, matching `is_byte_size`.
+        // Lowercase suffixes accepted, matching `normalized_byte_size`.
         assert_eq!(parse_bytes("4g"), Some(4 * 1024 * 1024 * 1024));
     }