check-dictionary-contract.py compares scripts/dictionary_product.py against the engine's own copy, so the job needs the submodule's contents and not just its gitlink. The reusable workflow this job replaced checked out submodules; the rewrite dropped that.
The script reported a missing file as "differs from the pinned Engine contract", which describes a drift that had not happened and sends the reader looking for a content change. It now says the file is missing and how to get it.
Evan Hu