Ad-hoc translation push for deprecations page

What does this MR do and why?

This MR uses GitLab Duo Agent Translation Platform to translate the following pages and make them available in japanese:

• https://docs.gitlab.com/update/breaking_windows/
• https://docs.gitlab.com/update/terminology/

References

gitlab-com/localization/docs-site-localization#532 (closed)

Screenshots or screen recordings

Before	After
N/A 404 error

How to set up and validate locally

1. In your docs development environment, checkout the branch into your GitLab repository.
2. Now go to your docs repository and deploy the docs into your local.
3. Visit the following pages:
   1. http://localhost:1313/ja-jp/update/breaking_windows/
   2. http://localhost:1313/ja-jp/update/terminology/

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.