CI: Update pytest invocation to get test coverage

Author: effigies

.coveragerc

@@ -2,3 +2,8 @@
 branch = True
 omit =
     */_version.py
+
+[paths]
+source =
+    pydra/tasks
+    /**/pydra/tasks

.github/workflows/pythonpackage.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Test with pytest
         run: |
           pytest -sv --doctest-modules pydra/tasks/$SUBPACKAGE \
-              --cov pydra.tasks.$SUBPACKAGE --cov-report xml
+              --cov pydra.tasks.$SUBPACKAGE --cov-report xml --cov-report term-missing
       - uses: codecov/codecov-action@v4
         if: ${{ always() }}
         with: