Use GITHUB_TOKEN per coveralls 3.3.1 help

Getting the following error

   Running on Github Actions but GITHUB_TOKEN is not set.
   Add "env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}" to
   your step config.

.github/workflows/ci.yml

@@ -51,6 +51,8 @@ jobs:
         python -m pip install --upgrade pip
         pip install coverage coveralls rply
     - name: Test coverage
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         coverage run test.py
-        COVERALLS_REPO_TOKEN=${{ secrets.COVERALLS_REPO_TOKEN }} coveralls
+        coveralls --service=github