Update docs.yml

Author: joecummings

.github/workflows/docs.yml

@@ -11,7 +11,7 @@ jobs:
   build-docs:
     if: github.repository_owner == 'meta-pytorch'
     name: Build Documentation
-    runs-on: linux.2xlarge
+    runs-on: linux.4xlarge
     timeout-minutes: 30
     steps:
       - name: Checkout