ci: x4 runner (not x8) + bump actions to latest Node-24 versions (removes Node-20 deprecation warnings) [skip ci]

Author: evereq

.github/workflows/e2e.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@v6
         with:
           version: 9