Disallow unsafe returns. (#19767)

packages/core/src/utils/filesearch/fileSearch.ts

@@ -149,6 +149,7 @@ class RecursiveFileSearch implements FileSearch {
         filteredCandidates = await this.fzf
           .find(pattern)
           .then((results: Array<FzfResultItem<string>>) =>
+            // eslint-disable-next-line @typescript-eslint/no-unsafe-return
             results.map((entry: FzfResultItem<string>) => entry.item),
           )
           .catch(() => {