New snapshot_meta_column_names config for dbt snapshots

[dbeatty10]

Resolves #6112

What are you changing in this pull request and why?

In Versionless and dbt v1.9, we have a new snapshot_meta_column_names config for dbt snapshots that allows for customizing the column names of the snapshot meta fields (dbt_valid_from, dbt_valid_to, dbt_scd_id, dbt_updated_at) to align with team or organizational conventions.

For example, they can now have whichever column names you choose (e.g., valid_start, valid_end, scd_identifier, last_modified).

Previews

• snapshot_meta_column_names
• Snapshot configurations
• Snapshot meta-fields
• dbt Cloud release notes

Checklist

• I have reviewed the Content style guide so my content adheres to these guidelines.
• The topic I'm writing about is for specific dbt version(s) and I have versioned it according to the version a whole page and/or version a block of content guidelines.
• Add a note to the release notes
• Add a note to the prerelease version Migration Guide
• Add page in website/sidebars.js
• Provide a unique filename for new pages

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Name	Status	Preview	Updated (UTC)
docs-getdbt-com	✅ Ready (Inspect)	Visit Preview	Oct 3, 2024 5:36pm

[graciegoheen]

Looks really good - couple nit picks

[graciegoheen]

couple final comments, but otherwise you have my approval :)

[runleonarun]

Looks good! Only a few tiny comments!