Add support for YAML content type in request body/example

[spastorelli]

Demo

Screen.Recording.2025-08-29.at.23.00.46.mov

Also fix RND-7962

[linear]

RND-7962 Missing "import json" in Python code example

RND-7823 YAML request body appears as JSON in OpenAPI examples

[changeset-bot]

🦋 Changeset detected

Latest commit: 82bc2f4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@gitbook/react-openapi	Patch
gitbook	Patch

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[github-actions]

Summary of the deployments:

Version	URL	Status
Vercel	https://gitbook-v2-az30cwkr2-gitbook.vercel.app	✅
Cloudflare	https://ffd6375f-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-az30cwkr2-gitbook.vercel.app/url/gitbook.com/docs	https://ffd6375f-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-az30cwkr2-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://ffd6375f-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

[argos-ci]

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Build	Status	Details	Updated (UTC)
customers-v2 (Inspect)	👍 Changes approved	1 changed	Aug 29, 2025, 9:14 PM
v2-cloudflare (Inspect)	👍 Changes approved	5 changed	Aug 29, 2025, 9:18 PM
v2-vercel (Inspect)	👍 Changes approved	5 changed	Aug 29, 2025, 9:17 PM