Support patterned and default HTTP status codes

[dbanty]

Closes #1271 and #832

[Copilot]

Pull Request Overview

This PR implements support for patterned and default HTTP status codes in OpenAPI specifications, enabling the use of status code patterns like 2XX, 4XX, and default in addition to specific status codes like 200.

• Introduces new HTTPStatusPattern class to handle parsing and validation of status code patterns
• Refactors response handling to support both specific codes and ranges with proper precedence ordering
• Updates template generation to handle default responses and status code ranges in generated client code

Reviewed Changes

Copilot reviewed 72 out of 72 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
openapi_python_client/parser/responses.py	Adds HTTPStatusPattern class and Responses container with pattern/default separation
openapi_python_client/parser/openapi.py	Updates Endpoint class to use new response structure and pattern parsing
openapi_python_client/templates/endpoint_module.py.jinja	Modifies template to generate range checks and handle default responses
tests/test_parser/test_responses.py	Updates tests to use HTTPStatusPattern instead of HTTPStatus
end_to_end_tests/	Adds new test endpoints and updates generated client files for pattern support

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[dbanty]

Just gotta add tests for coverage

[Copilot]

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