Merge branch 'release-0.18.0' into 'main'

.gitlab-ci.yml

CHANGELOG.md

CITATION.cff

Makefile

setup.py

src/doc/conf.py

src/linkahead/__init__.py

src/linkahead/apiutils.py

src/linkahead/common/models.py

src/linkahead/connection/connection.py

src/linkahead/connection/encode.py

src/linkahead/exceptions.py

src/linkahead/high_level_api.py

src/linkahead/utils/register_tests.py

unittests/test_entity.py

unittests/test_high_level_api.py

unittests/test_issues.py