using 4x runner

Author: sandeepgupta12

.github/workflows/ppc64le.yml

@@ -44,5 +44,5 @@ jobs:
     with:
       build-environment: linux-ppc64le-binary-manywheel
       docker-image-name: manylinuxppc64le-builder
-      runner: ubuntu-24.04-ppc64le-2xlarge
+      runner: ubuntu-24.04-ppc64le-4xlarge
     secrets: inherit