chore(deps): update actions/setup-python action to v5.6.0

Author: renovate[bot]

.github/workflows/auto-testing.yml

@@ -27,7 +27,7 @@ jobs:
       with:
         submodules: true
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -62,7 +62,7 @@ jobs:
         with:
           submodules: true
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies & lib

.github/workflows/publish-to-pypi.yml

@@ -22,7 +22,7 @@ jobs:
       with:
         submodules: true
     - name: Set up Python
-      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
       with:
         python-version: '3.x'
     - name: Install dependencies