Used a list in the CI

Author: gsolard

.github/workflows/ci.yml

@@ -18,11 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version:
-        - 3.8
-        - 3.9
-        - 3.10
-        - 3.11
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     name: Check Python ${{ matrix.python-version }}
     steps:
     - uses: actions/checkout@v2