Update GitHub actions (#354)

Bumps the update-github-actions-dependencies group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [docker/login-action](https://github.com/docker/login-action).


Updates `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)

Updates `docker/login-action` from 2.1.0 to 3.0.0
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v2.1.0...v3.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: update-github-actions-dependencies
- dependency-name: docker/login-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: update-github-actions-dependencies
...

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

.github/workflows/publish-artifacthub.yml

@@ -9,15 +9,15 @@ jobs:
   upload-artifact-repo-config:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install oras
         run: |
           curl -L https://github.com/oras-project/oras/releases/download/v1.1.0/oras_1.1.0_linux_amd64.tar.gz -o oras.tar.gz
           tar -xzf oras.tar.gz oras
           sudo mv oras /usr/local/bin
           rm oras.tar.gz
       - name: Docker Login
-        uses: docker/login-action@v2.1.0
+        uses: docker/login-action@v3.0.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}