Not able to add Videos Tag in Sitemap.xml using app router

[archanaagivale30]

Link to the code that reproduces this issue

https://github.com/archanaagivale30/nextjs_image_sitemap

To Reproduce

I am not able to add an image tag to sitemap.xml.

1. Create sitemap.js in app directory
2. try to add Video attribute but the feature is not available

Current vs. Expected behavior

Videos Tag should be available in sitemap.xml .

Provide environment information

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.3.0: Wed Dec 20 21:30:27 PST 2023; root:xnu-10002.81.5~7/RELEASE_ARM64_T8103
  Available memory (MB): 8192
  Available CPU cores: 8
Binaries:
  Node: 19.7.0
  npm: 9.5.0
  Yarn: 1.22.10
  pnpm: 9.5.0
Relevant Packages:
  next: 15.0.0-canary.67 // There is a newer canary version (15.0.0-canary.76) available, please upgrade! 
  eslint-config-next: 15.0.0-canary.67
  react: 19.0.0-rc-6230622a1a-20240610
  react-dom: 19.0.0-rc-6230622a1a-20240610
  typescript: 5.5.3
Next.js Config:
  output: N/A

Which area(s) are affected? (Select all that apply)

Developer Experience

Which stage(s) are affected? (Select all that apply)

next dev (local), next build (local), next start (local)

Additional context

No response

[github-actions]

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