try coveralls github action rather than manual invocation of coveralls

.github/workflows/build.yml

@@ -191,11 +191,13 @@ jobs:
       - name: test with docker
         run: |
           docker run -e _JAVA_OPTIONS -e PYTEST_ADDOPTS -v `pwd`/coverage:/coverage -v `pwd`/test:/opt/viral-ngs/source/test:rw --entrypoint /bin/bash $DOCKER_TAG -c 'set -e; cd /opt/viral-ngs/source; env; echo "LD_LIBRARY_PATH: $LD_LIBRARY_PATH"; export LD_LIBRARY_PATH="/opt/miniconda/envs/viral-ngs-env/lib:/usr/local/lib:${LD_LIBRARY_PATH}"; echo "nproc: $(nproc)"; python -c "import locale; print(locale.getpreferredencoding(False))"; pytest test/unit; cp .coverage /coverage'
-      - name: run coveralls
-        run: |
-          mv coverage/.coverage .
-          pip install coveralls>=1.3.0
-          coveralls --service=github
+      - name: Run coveralls
+        uses: coverallsapp/github-action@v2
+      #- name: run coveralls
+      #  run: |
+      #    mv coverage/.coverage .
+      #    pip install coveralls>=1.3.0
+      #    coveralls --service=github
 
   ## note: this test_docs job does not actually produce the output on readthedocs
   ## readthedocs does its own build trigger. this job exists simply to alert us