feat(ingestion/metabase): Add comprehensive lineage extraction with tags and models

[acrylJonny]

• Dashboard-level lineage (table-to-dashboard via datasetEdges)
• Native SQL query lineage parsing
• Query builder lineage extraction
• Nested query lineage (card-to-card references)
• Collection tags on dashboards, charts, and models
• Metabase Models as Dataset entities
• Comprehensive unit and integration tests

[codecov]

Codecov Report

❌ Patch coverage is 84.66667% with 23 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...ingestion/src/datahub/ingestion/source/metabase.py	84.66%	23 Missing ⚠️

📢 Thoughts on this report? Let us know!

[alwaysmeticulous]

✅ Meticulous spotted visual differences in 2 of 939 screens tested, but all differences have already been approved: view differences detected.

Meticulous evaluated ~8 hours of user flows against your PR.

_{Last updated for commit b14800f. This comment will update as new commits are pushed.}

[codecov]

Bundle Report

Bundle size has no change ✅