docs: clarify merge queue jump permissions

[alok-108]

Closes #46190.

Summary

Adds a section to the merge queue documentation clarifying that users need admin permissions or specific bypass permissions to jump the queue.

Verification

• Minimal surgical diff
• Zero whitespace issues

[github-actions]

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Table of review links

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Source	Review	Production	What Changed
repositories/configuring-branches-and-merges-in-your-repository/configuring-pull-request-merges/managing-a-merge-queue.md	fpt ghec ghes@ 3.22 3.21 3.20 3.19 3.18	fpt ghec ghes@ 3.22 3.21 3.20 3.19 3.18

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server

🤖 This comment is automatically generated.

[souravsviswajith]

sync

[souravsviswajith]

.

[souravsviswajith]

👍

[alok-108]

Thanks for the heads-up, @souravsviswajith

[alok-108]

Thank you for the positive feedback, @souravsviswajith