Update actions/checkout digest to d23441a

Author: renovate[bot]

.github/workflows/balena.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: true
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6
       - uses: balena-io/deploy-to-balena-action@63a685c4b9c898c38e66776284a78c4e50ec8c97 # v2.0.136
         with:
           balena_token: ${{ secrets.BALENA_TOKEN }}