Update actions/setup-python action to v5.6.0

Author: renovate[bot]

.github/workflows/python-linting.yaml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v4.2.2
 
       - name: Set up Python
-        uses: actions/setup-python@v5.4.0
+        uses: actions/setup-python@v5.6.0
         with:
           python-version: 3.12
           cache: 'pip'
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v4.2.2
 
       - name: Set up Python
-        uses: actions/setup-python@v5.4.0
+        uses: actions/setup-python@v5.6.0
         with:
           python-version: 3.12
           cache: 'pip'