fixup! diagnostics_channel: ensure tracePromise consistency with non-Promises

Author: Renegade334

doc/api/diagnostics_channel.md

@@ -831,7 +831,7 @@ added:
  - v18.19.0
 changes:
   - version: REPLACEME
-    pr-url: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/61766
     description: Custom thenables will no longer be wrapped in native Promises.
                  Non-thenables will be returned with a warning.
 -->