workflows: update to OpenSlide Windows release 20230414

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

Author: bgilbert

.github/workflows/python.yml

@@ -63,7 +63,7 @@ jobs:
     needs: pre-commit
     runs-on: windows-latest
     env:
-      WINBUILD_RELEASE: 20220811
+      WINBUILD_RELEASE: 20230414
     defaults:
       run:
         shell: bash