chore(deps): bump docker/login-action from 3 to 4 (#1229)

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

Author: dependabot[bot]

.github/workflows/acceptance-tests.yml

@@ -57,7 +57,7 @@ jobs:
             minimal-deployment
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.RENKU_DOCKER_USERNAME }}
           password: ${{ secrets.RENKU_DOCKER_PASSWORD }}

.github/workflows/save_cache.yml

@@ -21,7 +21,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}

.github/workflows/test_publish.yml

@@ -53,7 +53,7 @@ jobs:
           echo "image=$IMAGE" >> "$GITHUB_OUTPUT"
           echo "image_repository=$IMAGE_REPOSITORY" >> "$GITHUB_OUTPUT"
           echo "image_tag=$IMAGE_TAG" >> "$GITHUB_OUTPUT"
-      - uses: docker/login-action@v3
+      - uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -259,7 +259,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.RENKU_DOCKER_USERNAME }}
           password: ${{ secrets.RENKU_DOCKER_PASSWORD }}