Bump docker/build-push-action from 6.17.0 to 6.18.0 in the actions group

Bumps the actions group with 1 update: [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `docker/build-push-action` from 6.17.0 to 6.18.0
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.17.0...v6.18.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 6.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

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

Author: dependabot[bot]

.github/workflows/ci_servicex.yaml

@@ -110,7 +110,7 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Build and push
-        uses: docker/build-push-action@v6.17.0
+        uses: docker/build-push-action@v6.18.0
         if: ${{ github.secret_source == 'Actions' }}
         with:
           context: ${{ matrix.app.dir_name }}
@@ -121,7 +121,7 @@ jobs:
           file: ${{ matrix.app.dockerfile }}
           platforms: linux/amd64,linux/arm64
       - name: Build
-        uses: docker/build-push-action@v6.17.0
+        uses: docker/build-push-action@v6.18.0
         if: ${{ github.secret_source != 'Actions' }}
         with:
           context: ${{ matrix.app.dir_name }}