ci: continue on coveralls failure

Author: chadsec1

.github/workflows/tests.yml

@@ -40,6 +40,7 @@ jobs:
         run: PYTHONPATH=. pytest --cov=core --cov-report=xml
 
       - name: Upload to Coveralls
+        continue-on-error: true
         env:
           COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
         run: coveralls --service=github