fixup! tools: check version number in YAML comments from changelogs

Author: aduh95

tools/node-lint-md-cli-rollup/src/list-released-versions-from-changelogs.mjs

@@ -28,7 +28,7 @@ const filesToCheck = [];
 
 const dir = await fs.promises.opendir(dataFolder);
 for await (const dirent of dir) {
-  if (dirent.name.endsWith('.md')) {
+  if (dirent.isFile()) {
     filesToCheck.push(
       getVersionsFromFile(new URL(`./${dirent.name}`, dataFolder))
     );