chore(deps): update actions/checkout digest to df4cb1c (#1882)

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

Author: renovate[bot]

.github/workflows/repo-stats.yml

@@ -19,7 +19,7 @@ jobs:
     if: github.repository == 'sap/e-mobility-charging-stations-simulator'
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
 
       - name: Validate configuration
         run: |