feat: Release 0.5.21.3-test-multi-seat

[Dami-star]

Release 0.5.21.3-test-multi-seat

Summary by Sourcery

Prepare and document the 0.5.21.3-test-multi-seat Debian package release.

Build:

• Bump Debian package version to 0.5.21.3-test-multi-seat.

Documentation:

• Update Debian changelog to reflect the new multi-seat test release.

[github-actions]

TAG Bot

TAG: 0.5.21.3
EXISTED: no
DISTRIBUTION: unstable

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the Debian packaging metadata to release version 0.5.21.3-test-multi-seat by bumping the changelog entry and associated metadata.

File-Level Changes

Change	Details	Files
Release version bump in Debian packaging	Updated version to 0.5.21.3-test-multi-seat Added new changelog entry for this release Updated date and maintainer metadata	debian/changelog

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[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Dami-star, zccrs

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

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