Update actions/setup-python digest to 4267e28

Author: renovate[bot]

.github/workflows/pypi-publish.yml

@@ -46,7 +46,7 @@ jobs:
     steps:
     - uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709
     - name: Set up Python
-      uses: actions/setup-python@fbeb884f69f0ac1c0257302f62aa524c2824b649
+      uses: actions/setup-python@4267e283df95c05d9f16ece6624106f44613b489
       with:
         python-version: "3.13"
     - name: Install dependencies

.github/workflows/python-tests.yml

@@ -31,7 +31,7 @@ jobs:
 
     # 2. Set up the specific Python version
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@fbeb884f69f0ac1c0257302f62aa524c2824b649
+      uses: actions/setup-python@4267e283df95c05d9f16ece6624106f44613b489
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip' # Cache pip dependencies

.github/workflows/sign-release.yml

@@ -29,7 +29,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@fbeb884f69f0ac1c0257302f62aa524c2824b649
+        uses: actions/setup-python@4267e283df95c05d9f16ece6624106f44613b489
         with:
           python-version: '3.13'