🩹Fix publish workflow

Author: lord-haffi

.github/workflows/python-publish.yml

@@ -38,7 +38,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: "3.12"
       - name: Install tox
         run: |
           python -m pip install --upgrade pip
@@ -83,7 +83,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: "3.12"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip