Changelog for the version

Feature and Enhancement
- feat(wren-ai-service): batch processing to produce the semantics description for a large MDL (#868)
- feat(wren-ai-service): question recommendation pipeline (#830)

Fixes and Chores
- chore(wren-ai-service): optimize retrieval process (#871)
- chore(wren-ai-service): Update retrieval prompt rule for GA4 struct type column (#867)
- chore(wren-ai-service): minor-updates (#856)
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