Update codecov/codecov-action digest to 671740a

Author: renovate[bot]

.github/workflows/dotnet-coverage.yml

@@ -38,6 +38,6 @@ jobs:
       - name: Test
         run: dotnet test --no-build --verbosity normal
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@96b38e9e60ee60a8c3911f4612407bba2f9195fb
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de
         with:
           token: ${{ secrets.CODECOV_TOKEN }}