GitLab CI template made Drupal 11 the default version to run. But the tests of the 1.0.x-dev branch should run on Drupal 10 (because it use PHPUnit 9 and the test was build for PHPUnit 9).
The solution
variables:
OPT_IN_TEST_CURRENT: 0
OPT_IN_TEST_PREVIOUS_MAJOR: 1
References
1.
https://www.drupal.org/project/gitlab_templates/issues/3463894
📌
Update templates so 11.0 is the default/current branch
RTBC
2.
https://www.drupal.org/drupalorg/blog/gitlab-ci-templates-will-make-drup... →
Active
1.0
Miscellaneous
Issue #3485307: Configure GitLab CI template to run tests on Drupal 10
Automatically closed - issue fixed for 2 weeks with no activity.