fix: running pytest before pushing to pypi

.github/workflows/release-to-pypi.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+        pip install pytest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Run tests
       run: |