build: update test runner requirements path

.github/workflows/test_runner.yml

@@ -44,6 +44,6 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements/test.txt
+          pip install -r apiserver/requirements/test.txt
       - name: Run Tests
         run: coverage run --source='.' manage.py test --settings=plane.settings.test