workflows: fix macOS gui builds to match test runner (bug 1902706) (#…

…1733)

- update Python version to 3.12.4
- fix macOS runner version to 13

.github/workflows/deploy-gui.yml

@@ -53,11 +53,13 @@ jobs:
           asset_content_type: application/gzip
 
   build-and-publish-mac-gui:
-    runs-on: macos-latest
+    # macos-13 is the latest runner (as of time of writing) that does not cause a
+    # _tkinter import error during the build.
+    runs-on: macos-13
     env:
       # We need the official Python, because the GA ones only support newer macOS versions
       # The deployment target is picked up by the Python build tools automatically
-      PYTHON_VERSION: 3.11.1
+      PYTHON_VERSION: 3.12.4
       MACOSX_DEPLOYMENT_TARGET: 10.13
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps: