adding support for creaet named collection from connectors

[NamanMahor]

Closes PLAT-279: Support create_named_collections_from_connectors for Clickhouse

Checklist:

• [x] Covered by tests
• [x] Ran it and it works as intended
• [x] Reviewed the diff before requesting a review
• [x] Checked for unhandled edge cases
• [x] Linked the issues it closes
• [x] Checked if the docs need to be updated. If so, create a separate Linear DOCS issue
• [ ] Intend to cherry-pick into the release branch
• [x] I'm proud of this work!