fix download for tests

Author: kalebphipps

.github/workflows/test-pypi.yml

@@ -67,7 +67,7 @@ jobs:
     - name: Install package from TestPyPI
       run: |
         pip install --upgrade pip
-        pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple --pre "paint-csp-test==${VERSION}[dev]"
+        pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple --pre "paint-csp-test[dev]==${VERSION}"
 
     - name: Run tests with coverage
       run: |