Migrate to new poetry script

[rszamszur]

Checklist:

• Added tests for changed code where applicable.
• Documentation reflects the changes where applicable.
• Updated the CHANGELOG.md file with your changes.
• My PR is ready to review.

Resolves: #87

Description of the changes being introduced by the pull request:

[github-actions]

🚀 Deployed on https://626576d64e2f1048ff1590b1--fastapi-mvc.netlify.app

[codecov-commenter]

Codecov Report

Merging #88 (4245750) into master (ffb5cf3) will increase coverage by 0.13%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #88      +/-   ##
==========================================
+ Coverage   99.49%   99.62%   +0.13%     
==========================================
  Files          34       39       +5     
  Lines         591      808     +217     
==========================================
+ Hits          588      805     +217     
  Misses          3        3              

Impacted Files	Coverage Δ
fastapi_mvc/commands/base.py	100.00% <ø> (ø)
fastapi_mvc/generators/project.py	100.00% <ø> (ø)
fastapi_mvc/__init__.py	100.00% <100.00%> (ø)
fastapi_mvc/borg.py	100.00% <100.00%> (ø)
fastapi_mvc/cli/cli.py	100.00% <100.00%> (ø)
fastapi_mvc/cli/generate.py	100.00% <100.00%> (ø)
fastapi_mvc/cli/new.py	100.00% <100.00%> (ø)
fastapi_mvc/cli/run.py	100.00% <100.00%> (ø)
fastapi_mvc/commands/__init__.py	100.00% <100.00%> (ø)
fastapi_mvc/commands/generate.py	100.00% <100.00%> (ø)
... and 14 more

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