[docs-scanner] Incorrect GitHub unlink reference in account deactivation prerequisites

[docker-agent]

File: content/manuals/accounts/deactivate-user-account.md

Issue

The prerequisites section instructs users to "Unlink your GitHub account" with a link to automated builds documentation:

Unlink your GitHub and account.

This link points to documentation about unlinking GitHub for automated builds (a feature requiring paid subscriptions), not unlinking GitHub as a social login provider (which is what users need to do before deactivating their account).

The linked page (link-source.md) is specifically about "Configure automated builds from GitHub and BitBucket" and includes a note that "Automated builds require a Docker Pro, Team, or Business subscription."

Suggested fix

Either:

1. Remove this prerequisite entirely if it's not actually required for account deactivation, or
2. Update the link to point to the correct documentation about managing connected social accounts (similar to the "Manage connected accounts" section in manage-account.md), or
3. Clarify what type of GitHub linking needs to be undone (social login vs. automated builds)

The manage-account.md file in the same directory has a "Manage connected accounts" section that correctly describes unlinking Google or GitHub social login accounts, which may be the more appropriate reference.

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Found by nightly documentation freshness scanner

[aevesdocker]

fine as is