fix(guide-ci): Handle uncaught errors

tools/scripts/ci/ensure-guide-page-naming.js

@@ -47,7 +47,13 @@ function checkFile(file) {
 }
 
 readdirp({ root: guideRoot })
-  .on('data', checkFile)
+  .on('data', file =>
+    checkFile(file).catch(err => {
+      console.error(err);
+      // eslint-disable-next-line no-process-exit
+      process.exit(1);
+    })
+  )
   .on('end', () => {
     console.log(`