build(deps): bump actions/checkout from 3 to 4 (#127)

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

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
  timeout-minutes: 15
 
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
 
  - name: Build the test Docker image
  run: docker build --no-cache --target test-env --tag wait-for-test .
@@ -31,7 +31,7 @@ jobs:
 
  steps:
  - name: Checkout
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
 
  - name: Setup Node.js
  uses: actions/setup-node@v3