dbt-materialize: reduce catalog server load during blue/green deploys

[bobbyiliev]

Consolidate per-cluster sequential polling in deploy_await into a single WHERE IN query across all deployment clusters, reducing catalog server load by Nx during blue/green deploys.

[github-actions]

Thanks for opening this PR! Here are a few tips to help make the review process smooth for everyone.

PR title guidelines

• Use imperative mood: "Fix X" not "Fixed X" or "Fixes X"
• Be specific: "Fix panic in catalog sync when controller restarts" not "Fix bug" or "Update catalog code"
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Pre-merge checklist

• The PR title is descriptive and will make sense in the git log.
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[teskje]

This all looks plausible to me! I don't really have experience with dbt, so not sure how much that is worth 😅