update wt-sdk tag to adopt json schema related db change

[hsballoon]

• messages, response, chosen_trace, and rejected_trace must now be supplied as JSON strings when writing records.
• These fields are returned as JSON strings by default; pass deserialize_json=True to receive Python dict/list values.
• maintain_landing_indexes() and scripts/ops/maintain_landing_indexes.py have been replaced by the table-aware maintain_table_indexes() interface.
• Update readme.

All these above mentioned changes have been tested and executed in real s3 lancedb.

Summary by CodeRabbit

• Chores
  • Updated the cloud SDK to version 0.3.0.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: dcd62a61-970e-41b0-b558-4b1b3cf10447

📥 Commits

Reviewing files that changed from the base of the PR and between d3346d0 and b71a8b0.

📒 Files selected for processing (1)

• requirements-cloud.txt

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📝 Walkthrough

Walkthrough

The cloud requirements file updates the pinned wt-data-platform-sdk Git dependency from tag v0.2.0 to v0.3.0.

Changes

SDK dependency update

Layer / File(s)	Summary
Update SDK version requirements-cloud.txt	The wt-data-platform-sdk dependency now references Git tag v0.3.0 instead of v0.2.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• AI45Lab/SAfactory#33: Updates the same SDK dependency pin.
• AI45Lab/SAfactory#34: Updates the same SDK Git dependency.
• AI45Lab/SAfactory#40: Updates the SDK dependency to a successive release.

Suggested reviewers: wangxuhongcn

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly states that the pull request updates the wt-sdk tag to support JSON schema-related database changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[WangXuhongCN]

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