:package: v0.20.1

docker: update to ocrd==3.3.0

Dockerfile: supplant configs/ resource by pre-installing

ocrd-tool.json: add all langs

ocrd-tool.json: remove 'configs/' resource, add all scripts

Dockerfile: no more /models alias

CI: increase no-output timeout

Merge pull request #216 from bertsky/migrate-ocrd-v3

Docker: shortcut ocrd-all-tool.json via ocrd-tool.json, simplify

setup→pyproject

extend tests: with instance_caching

Merge remote-tracking branch 'refs/remotes/bertsky/migrate-ocrd-v3' into migrate-ocrd-v3

update ocrd req

test: disableLogging at the end of tests (because pytest closes all files before deinit)

CI: extend timeout without output