fix cloud version

[lingdie]

🤖 Generated by Copilot at 14f0081

Summary

🔧🌥️📝

Rename CLOUD_VERSION to cloud_version in scripts/cloud/install.sh. This improves the code style and avoids variable name clashes.

The script had a variable CLOUD_VERSION
But it caused some confusion and tension
So they changed it to cloud_version
And updated the references with precision
Now the code is more clear and consistent

Walkthrough

• Rename CLOUD_VERSION variable to cloud_version to follow shell convention and avoid confusion (link, link, link, link, link, link)

[sealos-ci-robot]

🤖 Generated by lychee action

Summary

Status	Count
🔍 Total	981
✅ Successful	312
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	668
❓ Unknown	0
🚫 Errors	0

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