Merge branch 'pyupgrade-39' into 'develop'

nomad/app/dcat/common.py

nomad/app/dcat/routers/dcat.py

nomad/app/h5grove_app.py

nomad/app/optimade/__init__.py

nomad/app/optimade/common.py

nomad/app/optimade/elasticsearch.py

nomad/app/optimade/filterparser.py

nomad/app/resources/main.py

nomad/app/resources/routers/resources.py

nomad/app/v1/models/graph/graph_models.py

nomad/app/v1/models/graph/utils.py

nomad/app/v1/models/groups.py

nomad/app/v1/models/models.py

nomad/app/v1/models/pagination.py

nomad/app/v1/routers/auth.py

nomad/app/v1/routers/datasets.py

nomad/app/v1/routers/entries.py

nomad/app/v1/routers/info.py

nomad/app/v1/routers/metainfo.py

nomad/app/v1/routers/north.py