Bump docker/build-push-action from 4 to 5

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 4 to 5.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v4...v5)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
     - name: "🧰 Set up Docker Buildx"
       uses: docker/setup-buildx-action@v2
     - name: "🚀 Build image"
-      uses: docker/build-push-action@v4
+      uses: docker/build-push-action@v5
       with:
         context: .
         push: false
@@ -270,7 +270,7 @@ jobs:
           webis/ir_axioms
           ghcr.io/${{ github.repository }}
     - name: "🚀 Build and push image"
-      uses: docker/build-push-action@v4
+      uses: docker/build-push-action@v5
       with:
         context: .
         push: true