Add [project] section to pyproject.toml

[ogenstad]

Sets the required Python version so that ruff can pick this up when linting our code. Also fixed some auto fixable rules based on the changed ruleset (going from the default of Python 3.8 to 3.9).

Added new violations to the ignore section for now.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@             Coverage Diff             @@
##           develop     #150      +/-   ##
===========================================
+ Coverage    65.36%   65.42%   +0.05%     
===========================================
  Files           76       76              
  Lines         6950     6962      +12     
  Branches      1377     1377              
===========================================
+ Hits          4543     4555      +12     
  Misses        2033     2033              
  Partials       374      374              

Flag	Coverage Δ
python-3.10	44.38% <52.17%> (+<0.01%)	⬆️
python-3.11	44.38% <52.17%> (+<0.01%)	⬆️
python-3.12	44.38% <52.17%> (+<0.01%)	⬆️
python-3.9	43.50% <52.17%> (+0.01%)	⬆️
python-filler-3.12	23.87% <47.82%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
infrahub_sdk/batch.py	92.30% <100.00%> (+0.20%)	⬆️
infrahub_sdk/client.py	61.76% <100.00%> (+0.04%)	⬆️
infrahub_sdk/code_generator.py	29.03% <100.00%> (+1.16%)	⬆️
infrahub_sdk/ctl/utils.py	66.42% <100.00%> (+0.24%)	⬆️
infrahub_sdk/exceptions.py	71.95% <100.00%> (+0.34%)	⬆️
infrahub_sdk/node.py	68.78% <100.00%> (+0.03%)	⬆️
infrahub_sdk/pytest_plugin/loader.py	75.51% <100.00%> (+0.51%)	⬆️
infrahub_sdk/schema.py	73.67% <100.00%> (+0.04%)	⬆️
infrahub_sdk/topological_sort.py	91.83% <100.00%> (+0.17%)	⬆️
infrahub_sdk/transfer/exporter/json.py	20.61% <100.00%> (+0.82%)	⬆️
... and 2 more

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