Issue #3417516 by Grimreaper: No more need to override stylelint job.

Closes #3417516

To merge when the merge in gitlab CI templates will have taken effects.

.gitlab-ci.yml

@@ -7,15 +7,3 @@ include:
       - '/includes/include.drupalci.main.yml'
       - '/includes/include.drupalci.variables.yml'
       - '/includes/include.drupalci.workflows.yml'
-
-# Override stylelint job to allow to ignore some files.
-stylelint:
-  script:
-    - yarn --cwd $_WEB_ROOT/core add stylelint-junit-formatter
-    # Change directory to the project root folder.
-    - cd $CI_PROJECT_DIR/$_WEB_ROOT/modules/custom/$CI_PROJECT_NAME
-    # If there is no .stylelintignore file, there is no warning or error. The
-    # option is just ignored.
-    # The `|| true` makes sure the second call runs even if the first fails. https://stackoverflow.com/questions/59180675/how-to-continue-job-even-when-script-fails
-    - $CI_PROJECT_DIR/$_WEB_ROOT/core/node_modules/.bin/stylelint --ignore-path ./.stylelintignore --formatter verbose --config $CI_PROJECT_DIR/$_WEB_ROOT/core/.stylelintrc.json ./**/*.css --color || true
-    - $CI_PROJECT_DIR/$_WEB_ROOT/core/node_modules/.bin/stylelint --ignore-path ./.stylelintignore --formatter verbose --config $CI_PROJECT_DIR/$_WEB_ROOT/core/.stylelintrc.json ./**/*.css --color --custom-formatter $CI_PROJECT_DIR/$_WEB_ROOT/core/node_modules/stylelint-junit-formatter > $CI_PROJECT_DIR/junit.xml