Pin versions of formatting tools
If we pin the versions of isort and black in .gitlab-ci.yml and in install.sh then we should be able to avoid pains related to failed formatting checks. Currently black is pinned, but only in install.sh.
If we pin the versions of isort and black in .gitlab-ci.yml and in install.sh then we should be able to avoid pains related to failed formatting checks. Currently black is pinned, but only in install.sh.