ci.yml Use quotes around python versions

version 3.10 was interpreted as 3.1.

Per actions/setup-python#160
use quotes around versions
to get around yaml limitation

.github/workflows/ci.yml

@@ -10,12 +10,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python: [3.8, 3.9, 3.10, 3.11, 3.12]
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
         include:
           - os: macos-latest
-            python: 3.12
+            python: '3.12'
           - os: windows-latest
-            python: 3.12
+            python: '3.12'
 
     runs-on: ${{ matrix.os }}
 
@@ -45,7 +45,7 @@ jobs:
     - name: Set up Python 3.12
       uses: actions/setup-python@v1
       with:
-        python: 3.12
+        python: '3.12'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip