CI: trying a third way to activate the PDM venv

Author: Technologicat

.github/workflows/coverage.yml

@@ -30,12 +30,14 @@ jobs:
         pip install pdm
         pdm python install ${{ matrix.python-version }}
         pdm install
+      working-directory: /home/runner/work/unpythonic/
     - name: Generate coverage report
       run: |
         pip install coverage
-        . .venv/bin/activate
+        source .venv/bin/activate
         coverage run --source=. -m runtests
         coverage xml
+      working-directory: /home/runner/work/unpythonic/
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v1
       with:

.github/workflows/python-package.yml

@@ -32,13 +32,16 @@ jobs:
         pip install pdm
         pdm python install ${{ matrix.python-version }}
         pdm install
+      working-directory: /home/runner/work/unpythonic/
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --config=flake8rc --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --config=flake8rc --count --exit-zero --max-complexity=100 --max-line-length=127 --statistics
+      working-directory: /home/runner/work/unpythonic/
     - name: Test with unpythonic.test.fixtures
       run: |
-        . .venv/bin/activate
+        source .venv/bin/activate
         python runtests.py
+      working-directory: /home/runner/work/unpythonic/