Feature: Databricks compatibility

[fivetran-catfritz]

Confirm the following files were correctly updated automatically:

• [x] hooks/pre-command line added
• [x] pipeline.yml section added
• [x] sample.profiles.yml catalog updated
• [x] integration_tests/dbt_project.yml section added (check for dupes though)
• [x] Version updates for dbt_project.yml and integration_tests/dbt_project.yml (automatically moved to next breaking change)
• [x] Changelog (automatically moved to next breaking change, but check the PR links were added correctly!)
• [x] iterable_source.yml database logic updated

Manual updates are:

• [x] README
• [ ] ~Incremental Models~
• [x] Regen Docs
• [x] Local Databricks run and test passing
• [x] Buildkite passing