Exclude python versions incompatible with qt backend libs

Author: hosaka

.github/workflows/main.yml

@@ -19,21 +19,28 @@ jobs:
     runs-on: ${{ matrix.image }}
     strategy:
       matrix:
-        os: [ubuntu, windows, macos-arm64]
+        os: [ubuntu, windows, macos-x86_64, macos-arm64]
         python-version: ["3.8", "3.9", "3.10", "3.11"]
         qt-version: ["pyside2", "pyside6", "pyqt5", "pyqt6"]
         include:
           - os: ubuntu
             image: ubuntu-24.04
           - os: windows
             image: windows-2022
-          # - os: macos
-          #   image: macos-14-large
+          - os: macos-x86_64
+            image: macos-13
           - os: macos-arm64
             image: macos-14
         exclude:
           - os: macos-arm64
             qt-version: pyside2
+          - python-version: "3.11"
+            qt-version: pyside2
+          # both pyside6 and pyqt6 require python>=3.9
+          - python-version: "3.8"
+            qt-version: pyside6
+          - python-version: "3.8"
+            qt-version: pyqt6
       fail-fast: false
     defaults:
       run: