Try to fix gh actions issue not taking updated coveralls-python-action

.github/workflows/tests.yml

@@ -45,7 +45,7 @@ jobs:
       if: ${{ ! matrix.jython }}
       run: tox
     - name: Coveralls
-      uses: baztian/coveralls-python-action@merged-changes
+      uses: baztian/coveralls-python-action@new-merged-changes
       with:
         parallel: true
         flag-name: ${{ matrix.plattform }}-${{ matrix.python-version }}
@@ -56,6 +56,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Coveralls Finished
-      uses: baztian/coveralls-python-action@merged-changes
+      uses: baztian/coveralls-python-action@new-merged-changes
       with:
         parallel-finished: true