build: update github actions

[bowenliang123]

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Summary

• to close update github actions with node 24 #30110
• Many of used github actions has switched to NodeJS 24 LTS for runtime , and Node 24 is reportedly 20% faster than Nodejs 22
• bump github action versions to use nodejs 24 as action runtime
  • tj-actions/changed-files@v47
  • astral-sh/setup-uv@v7
  • endersonmenezes/free-disk-space@v3
  • actions/setup-node@v6
  • actions/upload-artifact@v6
  • actions/checkout@v6

Screenshots

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Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

[gemini-code-assist]

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