Backport of docs: updated redirects formatting into release/1.21.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #22583 to be assessed for backporting due to the inclusion of the label backport/1.21.

🚨

Warning automatic cherry-pick of commits failed. If the first commit failed,
you will see a blank no-op commit below. If at least one commit succeeded, you
will see the cherry-picked commits up to, not including, the commit where
the merge conflict occurred.

The person who merged in the original PR is:
@boruszak
This person should resolve the merge-conflict(s) by either:

• Manually completing the cherry picks into this branch
• Creating a new branch and manually cherry-picking all commits being backported

merge conflict error: POST https://api.github.com/repos/hashicorp/consul/merges: 409 Merge conflict []

The below text is copied from the body of the original PR.

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Description

This PR updates the formatting of versioned redirects in the redirects.js file. A persistent error is preventing the redirects from functioning correctly with the updated version picker behavior.

Links

PR Checklist

• updated test coverage
• external facing docs updated
• appropriate backport labels added
• not a security concern

PCI review checklist

• I have documented a clear reason for, and description of, the change I am making.

• If applicable, I've documented a plan to revert these changes if they require more than reverting the pull request.

• If applicable, I've documented the impact of any changes to security controls.

  Examples of changes to security controls include using new access control methods, adding or removing logging pipelines, etc.

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Overview of commits

• 080d45e

• a4ee5a9

• 832a2c6

• 0adb912

• 8f629e7

• 5736948

• 519ad05

• 621db9d

• ef5e44d

[github-team-consul-core-pr-approver]

Auto approved Consul Bot automated PR

[boruszak]

#22622