doc: don't check links in tmp dirs

PR-URL: https://github.com/nodejs/node/pull/32996
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

tools/doc/checkLinks.js

@@ -27,6 +27,7 @@ function findMarkdownFilesRecursively(dirPath) {
     if (
       entry.isDirectory() &&
       entry.name !== 'api' &&
+      entry.name !== 'tmp' &&
       entry.name !== 'fixtures' &&
       entry.name !== 'changelogs' &&
       entry.name !== 'deps' &&