Add python version matrix as strings

Author: Alir3z4

.github/workflows/main.yml

@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9, 3.10, 3.11, 3.12, 3.13]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     name: "Python ${{ matrix.python-version }}"