feat: Add src code excerpt on ruff errors

[tefra]

📒 Description

Really helpful to see exactly what the error was, when we update the generator

Error: Ruff failed
details: Failed to parse netex/models/entity_in_version_structure.py:378:58: Unexpected token ']'
source:

   class AlternativeText(AlternativeTextVersionedChildStructure):
       class Meta:
           namespace = "http://www.netex.org.uk/netex"

--->    validity_conditions_or_valid_between: Optional[Union[]] = field(
           init=False,
           metadata={
               "type": "Ignore",

Resolves #xxxx

🔗 What I've Done

Write a description of the steps taken to resolve the issue

💬 Comments

A place to write any comments to the reviewer.

🛫 Checklist

• Updated docs
• Added unit-tests
• Sample tests pass
• W3C tests pass

[sonarcloud]

Quality Gate failed

Failed conditions
1 Security Hotspot

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.94%. Comparing base (cd65e54) to head (0ab7520).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #996   +/-   ##
=======================================
  Coverage   99.94%   99.94%           
=======================================
  Files         117      117           
  Lines        9140     9156   +16     
  Branches     2172     2175    +3     
=======================================
+ Hits         9135     9151   +16     
  Misses          4        4           
  Partials        1        1           

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