chore(deps): update actions/checkout digest to 8e8c483 (#255)

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

Author: renovate[bot]

.github/workflows/nix.yml

@@ -27,7 +27,7 @@ jobs:
           name: cclib
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
       # Checkout of the current head in the working dir
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3  # v6
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6
         with:
           persist-credentials: false
       - name: Check nix flake

.github/workflows/pre-commit.yml

@@ -16,7 +16,7 @@ jobs:
     name: Run pre-commit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3  # v6
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6
         with:
           persist-credentials: false
       - uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548  # v6