fix: instruction of stopping etcd sync on DR env

[IceCodeNew]

Summary by CodeRabbit

• Documentation
  • Updated global cluster upgrade procedure with new required prerequisite steps. Users must now access the cluster marketplace, uninstall the etcd synchronizer plugin, and confirm completion before proceeding with image uploads in the disaster recovery workflow.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This change adds procedural steps to the global disaster recovery documentation, specifically inserting instructions to uninstall the Alauda Container Platform etcd Synchronizer plugin before continuing with the upgrade workflow. The steps include accessing the primary cluster's web console, navigating to Marketplace > Cluster Plugins, and uninstalling the plugin.

Changes

Cohort / File(s)	Change Summary
Global Cluster DR Plugin Uninstall Steps docs/en/upgrade/upgrade_global_cluster.mdx	Added procedural block with steps to uninstall the etcd sync plugin via the web console, positioned after data consistency verification and before the upload images step

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Documentation-only change with straightforward procedural steps
• Single file modified with no code impact
• Steps addition is clearly scoped within the global DR workflow

Possibly related PRs

• Add global cluster disaster recovery documentation #61: Adds the initial global-cluster DR guide documentation that includes etcd synchronization plugin considerations
• feat: introduce FAQ for installation of Global DR #157: Modifies global DR/upgrade documentation with additional etcd synchronization plugin uninstall steps as part of the DR workflow
• [upgrade doc]: prerequisite of ACP v4.1 #52: Modifies instructions for uninstalling the etcd sync plugin, addressing both web console and CLI approaches

Poem

🐰 A sync plugin bids farewell with care,
Through console clicks, we make it rare,
Before the upgrade's steady climb,
Uninstall it, one last time!
The cluster's path grows bright and fair ✨

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch IceCodeNew-patch-1

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 01fa84a and eb7590a.

📒 Files selected for processing (1)

• docs/en/upgrade/upgrade_global_cluster.mdx (1 hunks)

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