Project template improvements

[sbidoul]

• pre-commit update (notably, the new, easier to update pytlint_odoo hook)
• new gitaggregate that does not rely on with-setup branches
• drop support for Odoo < 14 (and python 2)
• use hatch-odoo instead of setuptools-odoo
• remove version from acsoo.cfg (read it from pyproject.toml)
• remove trigram usage in tag_requirements
• ... so we can remove acsoo.cfg

[codecov-commenter]

Codecov Report

Merging #92 (818b7d3) into master (ca39a4b) will increase coverage by 0.16%.
The diff coverage is 40.74%.

@@            Coverage Diff             @@
##           master      #92      +/-   ##
==========================================
+ Coverage   72.88%   73.04%   +0.16%     
==========================================
  Files          16       16              
  Lines         841      846       +5     
  Branches      128      129       +1     
==========================================
+ Hits          613      618       +5     
  Misses        195      195              
  Partials       33       33              

Impacted Files	Coverage Δ
acsoo/tools.py	71.42% <0.00%> (ø)
acsoo/tag_requirements.py	20.96% <28.57%> (ø)
acsoo/config.py	78.66% <64.28%> (+1.52%)	⬆️

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[sbidoul]

Added a couple of commit to try and get rid of acsoo.cfg.