Drop Python v3.7 support

Date when Python project won’t support v3.7

• Python 3.7 support will be dropped in June 27th of 2023
• Platform which still uses Py3.7

Todos

DuniterPy

• Bump minimum version in pyproject.toml
• Delete test job for v3.7 from .gitlab-ci.yml
• Upgrade pyupgrade to --py38-plus argument in pre-commit hook
• Update minimal version in documentation: README.md and docs/index.rst

Container

• Delete v3.7 Docker image generation: Drop Py3.7 image generation (docker/python3/poetry#9 - closed)

---

• Create ticket for Py3.8: Drop Python v3.8 support (#199 - closed)

changed milestone to %Backlog

added Py ≥ 3.8 label

marked this issue as related to #179 (closed)

changed the description

mentioned in issue silkaj#457 (closed)

changed the description

changed milestone to %1.2.0

mentioned in issue silkaj#464 (closed)

changed due date to June 27, 2023

marked the checklist item Bump minimum version in pyproject.toml as completed

marked the checklist item Delete test job for v3.7 from .gitlab-ci.yml as completed

marked the checklist item Upgrade pyupgrade to --py38-plus argument in pre-commit hook as completed

changed the description

added CI/CD Dev Env Test labels

marked this issue as related to #199 (closed)

changed the description

assigned to @moul

mentioned in commit cdbfbbf0

mentioned in merge request !179 (merged)

mentioned in commit 2cd93368

closed with merge request !179 (merged)