Add Tokyo region

What does this MR do and why?

Adds the Tokyo region. Support was validated in https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/instrumentor/-/merge_requests/2778#note_1772773971

Closes https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/3505

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Before	After

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added GitLab Dedicated documentation typefeature labels

requested review from @andrewn and @lyspin

assigned to @fzimmer

@andrewn and @lyspin could you please review and merge?

	1 Message
	This merge request adds or changes documentation files. A review from the Technical Writing team before you merge is recommended. Reviews can happen after you merge.

Documentation review

The following files require a review from a technical writer:

• doc/subscriptions/gitlab_dedicated/index.md (Link to current live version)

The review does not need to block merging this merge request. See the:

• Metadata for the *.md files that you've changed. The first few lines of each *.md file identify the stage and group most closely associated with your docs change.
• The Technical Writer assigned for that stage and group.
• Documentation workflows for information on when to assign a merge request for review.

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Generated by Danger

changed milestone to %16.10

added docs-only label

approved this merge request

added Technical Writing devopsplatforms docsfeature groupdedicated labels

added Category:GitLab Dedicated sectionplatforms labels

approved this merge request

enabled an automatic merge when the pipeline for d0c0b74f succeeds

resolved all threads

merged

mentioned in commit e0ee6f7f

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