feat(event_handler): allow customers to catch request validation errors

[rubenfonseca]

Issue number: #3395

Summary

Changes

Please provide a summary of what's being changed

This PR allows the exception handler feature to work again when using data validation.

User experience

Please share what the user experience looks like before and after this change

app = APIGatewayRestResolver(enable_validation=True)

@app.exception_handler(RequestValidationError)
def handle_invalid_data(ex: RequestValidationError):
    return Response(
        status_code=422,
        content_type=content_types.TEXT_PLAIN,
        body="Invalid request parameters.",
    )

Checklist

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• Meet tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Is this a breaking change?

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (270060d) 95.39% compared to head (6ca9fb1) 95.41%.

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Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3396      +/-   ##
===========================================
+ Coverage    95.39%   95.41%   +0.02%     
===========================================
  Files          208      208              
  Lines         9645     9645              
  Branches      1767     1768       +1     
===========================================
+ Hits          9201     9203       +2     
+ Misses         330      329       -1     
+ Partials       114      113       -1     

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
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No Coverage information
0.0% Duplication