chore(deps): update actions/setup-python action to v6 (#289)

Author: renovate[bot]

.github/workflows/update.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           token: ${{ secrets.REPO_GHA_PAT }}
 
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:
           python-version: 3.9
 
@@ -37,7 +37,7 @@ jobs:
             echo "Updating Debian bullseye images"
             ./Debian/update.sh -d bullseye
 
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+      - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6
         with:
           python-version: 3.11