Bump docker/login-action from 4 to 4.5.1

Bumps [docker/login-action](https://github.com/docker/login-action) from 4 to 4.5.1.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v4...v4.5.1)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: 4.5.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -152,7 +152,7 @@ jobs:
       # docker.io (see env block above) where the same images are publicly pullable without a login,
       # and forks cannot authenticate against ghcr.io/dspace/* with their own GITHUB_TOKEN anyway.
       - name: Login to ${{ env.DOCKER_REGISTRY }}
-        uses: docker/login-action@v4
+        uses: docker/login-action@v4.5.1
         if: github.repository == 'dspace/dspace-angular'
         with:
           registry: ${{ env.DOCKER_REGISTRY }}