Set version and core dependency to 2.0b0

added 8 commits

• 45ce5c0e...1d074007 - 6 commits from branch master
• 6e9fd121 - Merge branch 'master' into prepare-release-2.0
• 61f232d2 - Update pyproject.toml, poetry.lock and tox.ini for 2.0b0

Compare with previous version

enabled an automatic merge when the pipeline for 61f232d2 succeeds

merged

mentioned in commit 9f1a2849