trial run with codecov token

.github/workflows/gh-ci.yaml

@@ -112,6 +112,15 @@ jobs:
         file: coverage.xml
         name: codecov-${{ matrix.os }}-py${{ matrix.python-version }}
         verbose: True
+        # to upload coverage reports, set a secret called CODECOV_TOKEN
+        # in the repository settings
+        # (Obtain this from the Codecov website after setting up the repository there)
+        token: {{ '${{ secrets.CODECOV_TOKEN }}' }}
+        # To fail the CI if there's an error, keep this set to true
+        # If repository forks need to run CI, you may need to set this to false
+        # Forks can't access the CODECOV_TOKEN secret,
+        # and a failed upload registers as an error
+        fail_ci_if_error: true
 
 
   pylint_check: