fix: exit with non-zero code when npm publish fails

The publish script was catching errors and logging them but exiting
with code 0, causing the CI workflow to show green even when publishing
failed. Now calls process.exit(1) on publish failure.

scripts/tasks/publish.ts

@@ -144,6 +144,7 @@ async function publish(ignoreErrors = false) {
   } catch (e) {
     Logger.error('Error publishing!');
     Logger.error(e);
+    process.exit(1);
   }
   Logger.profile('Publishing');
 }