build(deps): bump actions/checkout from 1 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 1 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v1...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/gh-pages.yml

@@ -22,7 +22,7 @@ jobs:
         curl -sfL https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash -s -- --version v3.5.2
 
     - name: Check out repo
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0