fix(icons): update cloud-download icon and close gaps

[karsa-mistmere]

Update cloud-download to match the changes made in #2352

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• I've read the Contribution Guidelines.
• I've checked if there was an existing PR that solves the same issue.

[github-actions]

Added or changed icons

Preview cohesion

Preview stroke widths

DPI Preview (24px)

Icon X-rays

Icons as code

Works for: lucide-react, lucide-react-native, lucide-preact, lucide-vue-next

const CloudDownloadIcon = createLucideIcon('CloudDownload', [
  ["path",{"d":"M12 13v8l-4-4"}],
  ["path",{"d":"m12 21 4-4"}],
  ["path",{"d":"M4.393 15.269A7 7 0 1 1 15.71 8h1.79a4.5 4.5 0 0 1 2.436 8.284"}]
])