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

Author: Renovate Bot

.github/workflows/script-checks.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@2.0.0
@@ -39,4 +39,4 @@ jobs:
     needs: shellcheck
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6