ci: use PyPI source for testsuite dependency

Author: vistart

.github/workflows/test.yml

@@ -80,7 +80,7 @@ jobs:
       - name: Install activerecord and testsuite from PyPI/git
         run: |
           pip install git+https://github.com/rhosocial/python-activerecord.git@release/v1.0.0.dev25
-          pip install git+https://github.com/rhosocial/python-activerecord-testsuite.git@release/v1.0.0.dev12
+          pip install rhosocial-activerecord-testsuite==1.0.0.dev12
 
       - name: Create postgres scenario config
         run: |