ci(action): update actions/setup-python action to v5.6.0 (#569)

Co-authored-by: descope[bot] <107609351+descope[bot]@users.noreply.github.com>

Author: descope[bot]

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup python for test ${{ matrix.py }}
-        uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: ${{ matrix.py }}
       - name: Install tox