Bump actions/checkout from 3.6.0 to 4.0.0

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] <support@github.com>

.github/workflows/github-ci.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v3.6.0
+    - uses: actions/checkout@v4.0.0
 
     - name: Use Node.js LTS 16.18.0
       uses: actions/setup-node@v3.8.1
@@ -45,7 +45,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
 
-    - uses: actions/checkout@v3.6.0
+    - uses: actions/checkout@v4.0.0
 
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v3.8.1

.github/workflows/reuse-compliance.yml

@@ -11,6 +11,6 @@ jobs:
     name: Compliance Check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.6.0
+    - uses: actions/checkout@v4.0.0
     - name: Execute REUSE Compliance Check
       uses: fsfe/reuse-action@v1.1