Merge branch 'release-0.9' into 'main'

.gitignore

CHANGELOG.md

README.md

RELEASE_GUIDELINES.md

setup.py

src/caosdb/apiutils.py

src/caosdb/common/models.py

src/caosdb/common/timezone.py

src/caosdb/schema-pycaosdb-ini.yml

src/caosdb/utils/register_tests.py

src/doc/administration.rst

src/doc/conf.py

src/doc/gallery/curator-permissions.rst

src/doc/gallery/curator_permissions.py

src/doc/gallery/index.rst

src/doc/tutorials/first_steps.rst

unittests/docker/Dockerfile

unittests/docker/sources.list.local

unittests/test_apiutils.py

unittests/test_configs/pycaosdb6.ini