retry with cython dep

.github/workflows/tests.yaml

@@ -61,7 +61,7 @@ jobs:
       # 3.13 failures
       # httpbin: greenlet: C API
       # jq: cython pyx
-      run: pip install -U ${{ matrix.deps }} pytest 'pytest-asyncio>=0.23' pytest-rerunfailures structlog tomli platformdirs lxml jq 'werkzeug<2.1' awesomeversion
+      run: pip install -U ${{ matrix.deps }} pytest 'pytest-asyncio>=0.23' pytest-httpbin pytest-rerunfailures structlog tomli platformdirs lxml cython jq 'werkzeug<2.1' awesomeversion
     - name: Decrypt keys
       env:
         KEY: ${{ secrets.KEY }}