fix: dify-api startup issues in ARM env.

[AlphaHinex]

Summary

Upgrade pypdfium2 version from ~4.17.0 to ~4.30.0 to fix dify-api startup issues in ARM env .

[FATAL:partition_root.cc(863)] Check failed: (internal::SystemPageSize() == (size_t{1} << 12)) || (internal::SystemPageSize() == (size_t{1} << 14)).

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Checklist

[!IMPORTANT]
Please review the checklist below before submitting your pull request.

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