GitLab CI: Two independent scheduled jobs

To build off @Naor Tedgi's answer, you can define a variable in your pipeline schedules. For example, set SCHEDULE_TYPE = "build_ui" in the schedule for build_for_ui_automation and SCHEDULE_TYPE = "independent" in the schedule for independent_job. Then your .gitlab-ci.yml file could be modified as:

stages:
  - build_for_ui_automation
  - independent_job

variables:
  LC_ALL: "en_US.UTF-8"
  LANG: "en_US.UTF-8"

before_script:
  - gem install bundler
  - bundle install

build_for_ui_automation:
  dependencies: []
  stage: build_for_ui_automation
  artifacts:
    paths:
      - fastlane/screenshots
      - fastlane/logs
      - fastlane/test_output
      - fastlane/report.xml
  script:
    - bundle exec fastlane ui_automation
  tags:
    - ios
  only:
    refs:
      - schedules
    variables:
      - $SCHEDULE_TYPE == "build_ui"
  allow_failure: false

# This should be added and trigerred independently from "build_for_ui_automation"
independent_job:
  dependencies: []
  stage: independent_job
  artifacts:
    paths:
      - fastlane/screenshots
      - fastlane/logs
      - fastlane/test_output
      - fastlane/report.xml
  script:
    - bundle exec fastlane independent_job
  tags:
    - ios
  only:
    refs:
      - schedules
    variables:
      - $SCHEDULE_TYPE == "independent"
  allow_failure: false

where note the syntax change in the only sections to execute the jobs only during schedules and when the schedule variable is matching.

in gitlab inside your project go to CI/CD -> Schedules press new Schedule button config the tasks as you want set the time and interval

now at the end add a variable for each one of them

now edit your gitlab.yml by adding that variable at the only section

as shown here below

https://docs.gitlab.com/ee/ci/variables/#environment-variables-expressions