ci: enabled GiltabCI

.gitlab-ci.yml

.gitlab/ci/Dockerfiles/README.md

.gitlab/ci/Dockerfiles/php.8.1_composer_phive/Dockerfile

.gitlab/ci/Dockerfiles/php.8.1_composer_phive/README.md

.gitlab/ci/Dockerfiles/php.8.2_composer_phive/Dockerfile

.gitlab/ci/Dockerfiles/php.8.2_composer_phive/README.md

.gitlab/ci/Dockerfiles/php.8.3_composer_phive/Dockerfile

.gitlab/ci/Dockerfiles/php.8.3_composer_phive/README.md

.gitlab/ci/config/hadolint.yml

.gitlab/ci/config/markdownlint.yml

.gitlab/ci/config/markdownlintignore.txt

.gitlab/ci/config/yamllint.yaml

.gitlab/ci/job.documentation.gitlab-ci.yml

.gitlab/ci/job.linters.gitlab-ci.yml

.gitlab/ci/job.php.gitlab-ci.yml

Makefile