I do not know how to get the complete url as required by google to suppress it. Their advice is to contact the webmaster of the site.
If you mean the complete URL of the Wikidata entry for Marie-Claude Lemiaire, the URL is:
If I search in Google (using Google Chrome browser, but it should be the same using other tools), I see the Wikidata page is, for me at least, the 5th result. It looks like this:
Marie-Claude. 0 references. family name · Lemaire. 0 references. occupation · physicist. 0 references. academic degree · Doctor of Philosophy. 0 references.
I believe this shows Google has already updated (re-crawled the Wikidata page) and no longer shows the unwanted name that was in the old version of Wikidata. That's all I know.
Dan