.gitlab-ci.yml: use "needs" instead of "dependencies" for documentation build

            - Documentation/**/*

            - src/TNL/**/*.{h,hpp}

            - .gitlab-ci.yml

    dependencies:

    # use "needs" instead of "dependencies" to allow out-of-order start of this job

    needs:

        # the job which builds Documentation/output_snippets/

        - cuda_examples_Debug

        - job: cuda_examples_Debug

          artifacts: true

    script:

        - ./Documentation/build

    artifacts:

            - develop

            - schedules

            - triggers

    # use "dependencies" instead of "needs" to deploy only when the entire pipeline succeeds

    dependencies:

        - build documentation

    script: