Bump actions/setup-python from 5.5.0 to 5.6.0 (#8375)

Author: dependabot[bot]

.github/workflows/link-checker.yaml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 #v4.2.2
 
       - name: Set up Python
-        uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 #v5.5.0
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 #v5.6.0
         with:
           python-version: 3.12