[pre-commit] homogenize/simplify pre-commit and isort options

.isort.cfg

.pre-commit-config.yaml

bob/devtools/ci.py

bob/devtools/dav.py

bob/devtools/deploy.py

bob/devtools/graph.py

bob/devtools/scripts/badges.py

bob/devtools/scripts/build.py

bob/devtools/scripts/caupdate.py

bob/devtools/scripts/changelog.py

bob/devtools/scripts/ci.py

bob/devtools/scripts/commitfile.py

bob/devtools/scripts/create.py

bob/devtools/scripts/dav.py

bob/devtools/scripts/dumpsphinx.py

bob/devtools/scripts/getpath.py

bob/devtools/scripts/graph.py

bob/devtools/scripts/jobs.py

bob/devtools/scripts/lasttag.py

bob/devtools/scripts/local.py