another try for opencv

.github/workflows/test.yml

@@ -23,8 +23,8 @@ jobs:
       - name: install dependencies
         run: |
           poetry install
-          poetry add numpy==1.21.6 opencv-python==4.6.0.66 --python 3.7
-          poetry add opencv-python --python >=3.8
+          poetry add numpy==1.21.6 opencv-python==4.6.0.66 --python "<=3.7"
+          poetry add opencv-python --python ">=3.8"
       - name: test startup
         run: poetry run ./test_startup.sh
       - name: setup chromedriver