Fail yarn build if any bundle fails to build (#26207)

## Summary

`yarn build` would previously still exit with zero exit code hiding
build errors such as
https://app.circleci.com/pipelines/github/facebook/react/38609/workflows/62a73635-3bf3-4264-8c48-a61844a27764/jobs/630503/parallel-runs/11?filterBy=ALL&invite=true#step-105-17.
These issues are still surfaced due to missing size bot artifacts but
the overall PR status would still be green which we don't want.

Now we just exit with the same exit has a the process of a single build
if it's non-zero.

## How did you test this change?

- [x] fails based on the parent of
62e6c46:
https://app.circleci.com/pipelines/github/facebook/react/38681/workflows/654c68ed-cebc-48d4-a156-bac719772f6f/jobs/632166
- [x] passes based on `main`

Author: eps1lon

scripts/rollup/build-all-release-channels.js

@@ -93,15 +93,24 @@ if (process.env.CIRCLE_NODE_TOTAL) {
 }
 
 function buildForChannel(channel, nodeTotal, nodeIndex) {
-  spawnSync('node', ['./scripts/rollup/build.js', ...process.argv.slice(2)], {
-    stdio: ['pipe', process.stdout, process.stderr],
-    env: {
-      ...process.env,
-      RELEASE_CHANNEL: channel,
-      CIRCLE_NODE_TOTAL: nodeTotal,
-      CIRCLE_NODE_INDEX: nodeIndex,
-    },
-  });
+  const {status} = spawnSync(
+    'node',
+    ['./scripts/rollup/build.js', ...process.argv.slice(2)],
+    {
+      stdio: ['pipe', process.stdout, process.stderr],
+      env: {
+        ...process.env,
+        RELEASE_CHANNEL: channel,
+        CIRCLE_NODE_TOTAL: nodeTotal,
+        CIRCLE_NODE_INDEX: nodeIndex,
+      },
+    }
+  );
+
+  if (status !== 0) {
+    // Error of spawned process is already piped to this stderr
+    process.exit(status);
+  }
 }
 
 function processStable(buildDir) {