Fix ci

Author: DanielNoord

.github/workflows/primer.yaml

@@ -22,7 +22,7 @@ jobs:
       - name: Install dependencies
         run: pip install -U -r requirements-test.txt
       - name: Run primer
-        run: python pydocstringformatter/testutils/primer.py
+        run: python -m pydocstringformatter.testutils.primer.primer
       - name: Post comment
         id: post-comment
         uses: actions/github-script@v3