Bump actions/checkout from 3.6.0 to 4.0.0 (#42)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.6.0 to 4.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3.6.0...v4.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/lint.yaml

@@ -14,7 +14,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v3.6.0"
+          uses: "actions/checkout@v4.0.0"
 
         - name: "Set up Python"
           uses: actions/[email protected]

.github/workflows/release.yaml

@@ -15,7 +15,7 @@ jobs:
       contents: write
     steps:
       - name: "Checkout the repository"
-        uses: "actions/checkout@v3.6.0"
+        uses: "actions/checkout@v4.0.0"
 
       - name: "Adjust version number"
         shell: "bash"

.github/workflows/validate.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v3.6.0"
+          uses: "actions/checkout@v4.0.0"
 
         - name: "Run hassfest validation"
           uses: "home-assistant/actions/hassfest@master"
@@ -27,7 +27,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
         - name: "Checkout the repository"
-          uses: "actions/checkout@v3.6.0"
+          uses: "actions/checkout@v4.0.0"
 
         - name: "Run HACS validation"
           uses: "hacs/action@main"