chore(deps): update actions/checkout action to v6 (#919)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/os_hardening.yml

@@ -60,7 +60,7 @@ jobs:
           - "/lib/systemd/systemd"
     steps:
       - name: Checkout repo
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
         with:
           path: ansible_collections/devsec/hardening
           submodules: true