Bump docker/build-push-action from 3 to 4 (#1530)

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

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

.github/workflows/build-docker.yml

@@ -31,7 +31,7 @@ jobs:
     - name: Stop Commands
       run: T="$(echo -n ${{ github.token }} | sha256sum | head -c 64)" && echo -e "::add-mask::${T}\n::stop-commands::${T}"
     - name: Build image
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v4
       with:
         context: deployment/docker
         pull: true
@@ -44,7 +44,7 @@ jobs:
     - name: Test image
       run: docker run --rm ${{ steps.names.outputs.name }}:test /root/test.sh
     - name: Push image
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v4
       if: ${{ github.repository_owner == 'OGGM' }}
       with:
         context: deployment/docker