Update actions/checkout action to v6.0.1 (#261)

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

Author: renovate[bot]

.github/workflows/hassfest.yaml

@@ -10,5 +10,5 @@ jobs:
   hassfest_custom:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/[email protected].0"
+      - uses: "actions/[email protected].1"
       - uses: home-assistant/actions/hassfest@master

.github/workflows/validate.yaml

@@ -11,7 +11,7 @@ jobs:
   validate-hacs:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/[email protected].0"
+      - uses: "actions/[email protected].1"
       - name: HACS validation
         uses: "hacs/action@main"
         with: