feat: support the HTTP QUERY method (RFC 10008)

[gentritabazi]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/nest/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior?

PathItemObject has no query operation field, so routes declared with the new HTTP QUERY method (RFC 10008, added to RequestMethod in nestjs/nest#17162) cannot be represented in the generated OpenAPI document.

Issue Number: N/A

What is the new behavior?

PathItemObject accepts an optional query operation, so controllers using RequestMethod.QUERY are exposed under the query method in the generated document — including their requestBody (QUERY is defined as a safe method that carries a body). A test covers a @RequestMapping({ method: RequestMethod.QUERY }) route end to end through SwaggerExplorer, asserting the method, path, request body schema, and response.

Note: the query operation key requires OpenAPI >= 3.2.0, so documents using it should set the version via DocumentBuilder#setOpenAPIVersion('3.2.0').

Does this PR introduce a breaking change?

• Yes
• No

Other information

Depends on nestjs/nest#17162 (RequestMethod.QUERY). The added test will pass once a @nestjs/common release includes that enum member.