[TEST] PYTHON_CPU_COUNT=16

Author: stephanosio

.github/workflows/twister.yaml

@@ -37,6 +37,7 @@ jobs:
         subset: ${{fromJSON(needs.twister-build-prep.outputs.subset)}}
     timeout-minutes: 1440
     env:
+      PYTHON_CPU_COUNT: 16
       CCACHE_DIR: /node-cache/ccache-zephyr
       CCACHE_REMOTE_STORAGE: "redis://cache-*.keydb-cache.svc.cluster.local|shards=1,2,3"
       CCACHE_REMOTE_ONLY: "true"