feat: use ubuntu-latest-8-cores for faster Docker builds

- Update GitHub Actions workflow to use larger runners for better performance
- Minor formatting cleanup

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

Co-Authored-By: Claude <noreply@anthropic.com>

Author: waleedlatif1

.github/workflows/build.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-8-cores
     strategy:
       fail-fast: false
       matrix: