Update actions/setup-python to ProdSec-approved version

Change actions/setup-python SHA to the version approved by ProdSec for security compliance.

Author: mraible

.github/workflows/main.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - name: Setup Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548  # v6.1.0
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c  # v6.0.0
         with:
           python-version: '3.13'
           cache: 'pip'

.github/workflows/pylint.yml

@@ -24,7 +24,7 @@ jobs:
 
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - name: Set up Python
-        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548  # v6.1.0
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c  # v6.0.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - name: Install global dependencies