lint: fix black and flake8 errors

4 jobs for 45-test-validating-messages-with-references-to-geojson-schema-in-both-js-and-python in 51 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Lint
passed #935221
docker
lint

00:00:19

 
  Build
passed #935222
shell
build

00:00:20

 
  Test
passed #935223
shell
test

00:00:05

 
  Tag Docker
passed #935224
shell
tag_docker

00:00:05