Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/docker-release.yml

@@ -7,7 +7,7 @@ jobs:
     name: Docker build${{ (github.ref == format('refs/heads/{0}', github.event.repository.default_branch) && ' and push') || '' }}
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v2
     - name: Set up Docker Buildx

.github/workflows/lint.yml

@@ -6,6 +6,6 @@ jobs:
     name: Hadolint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Run hadolint
       uses: hadolint/[email protected]