Merge pull request #29285 from Sidnioulz/chore/build-package-watch

Build: Filter out @storybook/root from buildable packages

scripts/build-package.ts

@@ -11,7 +11,7 @@ import windowSize from 'window-size';
 import { getWorkspaces } from './utils/workspace';
 
 async function run() {
-  const packages = await getWorkspaces();
+  const packages = (await getWorkspaces()).filter(({ name }) => name !== '@storybook/root');
   const packageTasks = packages
     .map((pkg) => {
       let suffix = pkg.name.replace('@storybook/', '');