chore: macos -> ubuntu

Author: andrew-yangy

.github/workflows/ui-tests.yml

@@ -14,7 +14,7 @@ jobs:
   build:
     if: github.event.pull_request.head.repo.fork == false
     name: Build sample game for AltTester 🛠️
-    runs-on: macos-latest
+    runs-on: ubuntu-latest-8-cores
     steps:
       - uses: actions/checkout@v3
         with: