Update actions/checkout digest to de0fac2 (#642)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Maciej Mensfeld <maciej@mensfeld.pl>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
     timeout-minutes: 5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           fetch-depth: 0
       - name: Set up Ruby

.github/workflows/verify-action-pins.yml

@@ -9,7 +9,7 @@ jobs:
   verify_action_pins:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Check SHA pins
         run: |
           if grep -E -r "uses: .*/.*@(v[0-9]+|main|master)($|[[:space:]]|$)" --include="*.yml" --include="*.yaml" .github/workflows/ | grep -v "#"; then