message: chore: fix yarn command var in GitHub Action
diff: @@ -63,7 +63,7 @@ jobs:
  export AUSPICE_VERSION="${{ steps.check-auspice-version.outputs.AUSPICE_VERSION }}"
  - yarn install auspice@${AUSPICE_VERSION}
  + yarn add auspice@${AUSPICE_VERSION}
  git add package.json yarn.lock
  git commit -m "feat: update Auspice to version ${AUSPICE_VERSION}"
  