doc: fix doc metadata for Node.js 16.19.0
When cherry-picking the release commit for Node.js 16.19.0 to the main
branch git updated the metadata for the wrong item in doc/api/test.md
.
Refs: https://github.com/nodejs/node/pull/45506#issuecomment-1352044951 Refs: https://github.com/nodejs/Release/issues/771
cc @targos