Start testing on 3.13 (#1949)

Author: Carreau

.github/workflows/test.yaml

@@ -14,7 +14,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+ python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
  steps:
  - uses: actions/checkout@v4