bump to py 3.13

Author: ianscrivener

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.13"]
     steps:
       - uses: actions/checkout@v2
       - name: Install CadQuery and pytest