Set up github token for coveralls in tom_fink

[jchate6]

Run poetry run coveralls
  poetry run coveralls
  shell: /usr/bin/bash -e {0}
  env:
    pythonLocation: /opt/hostedtoolcache/Python/[3](https://github.com/TOMToolkit/tom_fink/actions/runs/8481547434/job/23239093385?pr=44#step:6:3).9.19/x64
    LD_LIBRARY_PATH: /opt/hostedtoolcache/Python/3.9.19/x6[4](https://github.com/TOMToolkit/tom_fink/actions/runs/8481547434/job/23239093385?pr=44#step:6:4)/lib
    COVERALLS_REPO_TOKEN: 
Running on Github Actions but GITHUB_TOKEN is not set. Add "env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}" to your step config.
Traceback (most recent call last):
  File "/home/runner/.cache/pypoetry/virtualenvs/tom-fink-sHgo[5](https://github.com/TOMToolkit/tom_fink/actions/runs/8481547434/job/23239093385?pr=44#step:6:5)1wW-py3.9/lib/python3.9/site-packages/coveralls/cli.py", line [6](https://github.com/TOMToolkit/tom_fink/actions/runs/8481547434/job/23239093385?pr=44#step:6:6)4, in main
    coverallz = Coveralls(token_required,
  File "/home/runner/.cache/pypoetry/virtualenvs/tom-fink-sHgo51wW-py3.9/lib/python3.9/site-packages/coveralls/api.py", line 49, in __init__
    self.ensure_token()
  File "/home/runner/.cache/pypoetry/virtualenvs/tom-fink-sHgo51wW-py3.[9](https://github.com/TOMToolkit/tom_fink/actions/runs/8481547434/job/23239093385?pr=44#step:6:10)/lib/python3.9/site-packages/coveralls/api.py", line 56, in ensure_token
    raise CoverallsException(
coveralls.exception.CoverallsException: Running on Github Actions but GITHUB_TOKEN is not set. Add "env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}" to your step config.