Fix up workflow so it doesn't run the tests twice to produce coverage

.github/workflows/python-package.yml

@@ -33,20 +33,16 @@ jobs:
       run: |
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - name: Test with pytest
-      run: |
-        pytest test
-    - name: Calculate coverage
-      run: coverage run --source=pymdp -m unittest discover test
-    - name: Generate Coverage HTML
+    - name: Run tests with pytest, calculating coverage
+      run: coverage run --source=pymdp -m pytest test/
+    - name: Generate coverage HTML report
       run: coverage html
-      # expect this to fail when run locally with `act`
+      # expect actions/upload-artifact@v4 to fail when run locally with `act`
     - name: Upload Coverage HTML Report for pymdp as a build artifact
       uses: actions/upload-artifact@v4
       with:
           name: pymdp--coverage-report
           path: htmlcov/
           retention-days: 30
     - name: Print coverage report to console
-      run: |
-          coverage report
+      run: coverage report

.gitignore

@@ -10,3 +10,5 @@ __pycache__
 env/
 pymdp.egg-info
 inferactively_pymdp.egg-info
+htmlcov
+.coverage