[CLEAN] Synthetic Benchmark PR #30106 - build: update github actions

[tomerqodo]

Benchmark PR langgenius#30106

Type: Clean (correct implementation)

Original PR Title: build: update github actions
Original PR Description: > [!IMPORTANT]

1. Make sure you have read our contribution guidelines
2. Ensure there is an associated issue and you have been assigned to it
3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

• to close update github actions with node 24 langgenius/dify#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

Original PR URL: langgenius#30106