How can caching and artifacts speed up Service discovery on GitLab CI?

        // Example of a GitLab CI configuration with caching and artifacts
        stages:
          - build
          - test
          - deploy

        cache:
          paths:
            - vendor/
            - node_modules/

        build_job:
          stage: build
          script:
            - echo "Building the application..."
            - composer install
            - npm install
          artifacts:
            paths:
              - build/

        test_job:
          stage: test
          dependencies:
            - build_job
          script:
            - echo "Running tests..."
            - phpunit

        deploy_job:
          stage: deploy
          script:
            - echo "Deploying the application..."
            - ./deploy.sh