fix(bundling): rollup watch mode yields result from async iterable (#…

…26160)

This PR fixes the return from `@nx/rollup:rollup` executor so that it
yields results from the inner async iterable.

## Current Behavior
<!-- This is the behavior we have today -->

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

## Related Issue(s)
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merged. -->

Fixes #

(cherry picked from commit 012ce7c)

packages/rollup/src/executors/rollup/rollup.impl.ts

@@ -84,7 +84,7 @@ export async function* rollupExecutor(
 
   if (options.watch) {
     // region Watch build
-    return createAsyncIterable(({ next }) => {
+    return yield* createAsyncIterable(({ next }) => {
       const watcher = rollup.watch(rollupOptions);
       watcher.on('event', (data) => {
         if (data.code === 'START') {