fix(ui-scripts): fix pnpm publish workflow failures after migration

Fix two issues introduced by the pnpm migration that caused GitHub Actions
workflow failures:

1. ENEEDAUTH error on release commits:
   - Problem: .npmrc file with auth token was cleaned up before async
     publishing completed due to returning Promise instead of awaiting
   - Fix: Changed return to await for publishRegularVersion and
     publishSnapshotVersion so finally block runs after publishing finishes

2. ERR_PNPM_GIT_UNCLEAN error on snapshot releases:
   - Problem: pnpm publish checks git working tree by default (npm did not),
     and snapshot releases intentionally modify package.json files without
     committing (temporary version bumps for CI)
   - Fix: Added --no-git-checks flag to pnpm publish command to allow
     publishing with dirty working tree, matching previous npm behavior

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: balzss

packages/ui-scripts/lib/commands/publish.js

@@ -85,15 +85,15 @@ async function publish({ packageName, version, isMaintenance, prRelease }) {
         ? `v${version.split('.')[0]}_maintenance`
         : 'latest'
       info(`📦  Version: ${version}, Tag: ${tag}`)
-      return publishRegularVersion({
+      await publishRegularVersion({
         version,
         tag,
         packages
       })
     } else {
       const tag = prRelease ? 'pr-snapshot' : 'snapshot'
       info(`📦  Version: ${version}, Tag: ${tag}`)
-      return publishSnapshotVersion({
+      await publishSnapshotVersion({
         version,
         packageName,
         packages,
@@ -215,7 +215,7 @@ async function publishPackage(pkg, tag) {
       setTimeout(resolve, delay)
     })
 
-  const publishArgs = ['publish', pkg.location, '--tag', tag]
+  const publishArgs = ['publish', pkg.location, '--tag', tag, '--no-git-checks']
   await runCommandAsync('pnpm', publishArgs)
 
   return wait(500)