Merge pull request #8627 from ethereum-optimism/never-connect-to-cloud

:technologist: feat: Add never-connect-to-cloud to nx.json

nx.json

 {
+  "$schema": "./node_modules/nx/schemas/nx-schema.json",
   "defaultBase": "develop",
+  "neverConnectToCloud": true,
   "affected": {
     "defaultBase": "develop"
   },