Update actions/checkout digest to 8e8c483

Author: renovate[bot]

.github/workflows/checks.yml

@@ -10,7 +10,7 @@ jobs:
   checks:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       with:
         persist-credentials: false
     - uses: DeterminateSystems/nix-installer-action@main

.github/workflows/hassfest.yml

@@ -12,7 +12,7 @@ jobs:
   validate:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd" # v6
+      - uses: "actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8" # v6
         with:
           persist-credentials: false
       - uses: "home-assistant/actions/hassfest@master"