Update test.yml

Author: rdbende

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
       with:
-        python-version: '3.11'
+        python-version: '3.13'
         cache: pip
     - run: python3 -m pip install mypy
     - run: mypy sv_ttk/__init__.py
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-latest", "windows-latest"]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12.0-beta.3"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
@@ -42,15 +42,14 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
     env:
       TCLLIBPATH: ./lib
       PYTHON: /usr/local/opt/python@${{ matrix.python-version }}/libexec/bin/python
     steps:
     - uses: actions/checkout@v3
     - run: brew install python@${{ matrix.python-version }}
-    - if: matrix.python-version != '3.8'
-      run: brew install python-tk@${{ matrix.python-version }}
+    - run: brew install python-tk@${{ matrix.python-version }}
     - run: $PYTHON --version
     - run: |
           python3 -m pip install .