skip existing package on twine upload (#5)

Author: planetmarshall

.github/workflows/build_deploy.yml

@@ -83,7 +83,7 @@ jobs:
         run: |
           echo ${GITHUB_REF}
           [[ ${GITHUB_REF} == "refs/heads/main" ]] && PYPI_REPOSITORY="--repository testpypi"
-          twine upload ${PYPI_REPOSITORY} dist/*
+          twine upload --skip-existing ${PYPI_REPOSITORY} dist/*
         env:
           TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
           TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}