doc/roadmap.md: update, Q4 2020

Prepared with @flothoni
4 jobs for doc/update_roadmap_2020_q3 in 2 minutes and 9 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Test Tools
passed #823271
test_tools

00:00:12

 
  Test Quality
failed #823272
allowed to fail
code_quality

00:00:02

 
  Tgz Release
passed #823273
cidocker
build_doc

00:01:49

 
  Deploy Prod
passed #823274
manual
deploy_doc

00:00:07

 
Name Stage Failure
failed
code_quality Test Quality
$ function propagate_env_vars() { # collapsed multi-line command
$ docker pull --quiet "$CODE_QUALITY_IMAGE"
unknown flag: --quiet
See 'docker pull --help'.
Uploading artifacts...
Runtime platform arch=386 os=linux pid=14309 revision=58272c27 version=12.7.0
WARNING: gl-code-quality-report.json: no matching files
ERROR: No files to upload
ERROR: Job failed: exit status 1