workflows: switch to Python 3.13 final

Signed-off-by: Benjamin Gilbert <[email protected]>

Author: bgilbert

.github/workflows/python.yml

@@ -43,7 +43,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, ubuntu-24.04-aarch64, macos-latest]
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13-dev"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
         openslide: [system, wheel]
         include:
           - os: ubuntu-latest
@@ -168,7 +168,7 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13-dev"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
         openslide: [zip, wheel]
     steps:
     - name: Check out repo