Add .gitlab-ci.yml file to enable GitLab CI/CD pipeline in Webblog Module
### Problem/Motivation
Add a GitLab file to test the WebBlog module with the Webship-js tool and make sure it works perfectly in the Drupal environment
Steps to reproduce
### Proposed resolution
### Checkpoints
- [x] File an issue
- [x] Addition for a new supported feature
- [x] Testing to ensure no regression
- [ ] Automated unit testing coverage
- [ ] Automated functional testing coverage
- [ ] UX/UI designer responsibilities
- [ ] Readability
- [ ] Accessibility
- [ ] Performance
- [ ] Security
- [ ] Documentation
- [x] Reviewed by human
- [x] Code review by maintainers
- [x] Full testing and approval
- [x] Credit contributors
- [x] Review with the product owner
- [x] Release Notes
- [x] Release
### API changes
N/A
### Data model changes
N/A
### Release notes snippet
addition: [#3508520](https://git.drupalcode.org/project/webblog/-/work_items/3508520) Add .gitlab-ci.yml file to enable GitLab CI/CD pipeline in Webblog Module
issue