Use GITHUB_TOKEN for action

Author: jbtronics

.github/workflows/arduino-ci.yaml

@@ -27,6 +27,6 @@ jobs:
 
  - name: doxygen
  env:
- GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }}
+ GH_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  PRETTYNAME : "ESP32Console Library"
  run: bash ci/doxy_gen_and_deploy.sh