python: drop 3.13

Author: bastimeyer

.github/workflows/main.yml

@@ -10,12 +10,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - cpython_branch: "3.13"
-            cpython_commit: 8183fa5e3f78ca6ab862de7fb8b14f3d929421e0
-            arch: x64
-            platform: amd64
-            build_args: ""
-            os: windows-2022
           - cpython_branch: "3.14"
             cpython_commit: ebf955df7a89ed0c7968f79faec1de49f61ed7cb
             arch: x64