github-actions(deps): bump docker/login-action from 3 to 4

Bumps [docker/login-action](https://github.com/docker/login-action) from 3 to 4.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -42,7 +42,7 @@ jobs:
         uses: "docker/setup-buildx-action@v3"
 
       - name: "Login to Docker Hub"
-        uses: "docker/login-action@v3"
+        uses: "docker/login-action@v4"
         with:
           registry: "${{ env.REGISTRY }}"
           username: "${{ github.actor }}"