python 3.13 in workflows (python-poetry#9523)

Co-authored-by: Randy Döring <[email protected]>
(cherry picked from commit 6c43ac3)

Author: dimbleby

.github/workflows/main.yml

@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [Ubuntu, macOS, Windows]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         include:
           - os: Ubuntu
             image: ubuntu-22.04