Call os.cpus in update-codeowners (DefinitelyTyped#49063)

If you don't call it, you get the number of parameters of os.cpus, which
is 0, which parseDefinition treats as a single to return an empty result
instead of parsing.

scripts/update-codeowners.js

@@ -13,7 +13,7 @@ async function main() {
 
     clean();
     const dt = await getDefinitelyTyped(options, log);
-    await parseDefinitions(dt, { nProcesses: os.cpus.length, definitelyTypedPath: "." }, log);
+    await parseDefinitions(dt, { nProcesses: os.cpus().length, definitelyTypedPath: "." }, log);
     const allPackages = await AllPackages.read(dt);
     const typings = allPackages.allTypings();
     const maxPathLen = Math.max(...typings.map(t => t.subDirectoryPath.length));