Apply swh-py-template v0.3.3 with copier

Jenkins job DLDG/gitlab-builds #210 succeeded in 1 min 38 sec.
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added 2 commits

• c57cb4bd - Apply swh-py-template v0.3.3 with copier
• 24287f1b - dumb: Fix flake8 warning

Compare with previous version

Jenkins job DLDG/gitlab-builds #211 succeeded in 1 min 38 sec.
See Console Output, Blue Ocean and Coverage Report for more details.

merged manually