Add Databricks SQL Warehouse and MongoDB connection support

[jiatolentino]

Summary

The connections command hand-maintained its own ConnectionType enum and class map, which had fallen behind datamasque-python. Databricks SQL Warehouse and MongoDB both ship dedicated config classes in the library (DatabricksConnectionConfig, MongoConnectionConfig), and list/get already deserialized them, but neither could be created or imported via the CLI.

This wires both types into the CLI so they can be created from a JSON file (--file), consistent with how snowflake and dynamodb are handled (too many fields for flags).

Changes

• Add databricks and mongodb to the ConnectionType enum and _CONNECTION_CLASSES map.
• Import DatabricksConnectionConfig and MongoConnectionConfig from datamasque-python.
• Update the --type help text and add a Databricks --file example to the create docstring.
• Add from-file creation tests for both types.
• Bump version to 1.4.0 and update CHANGELOG.md.

Testing

• make check passes (ruff lint + format, mypy, 218 tests).
• Verified end-to-end against a live DataMasque instance: create, list, get, and delete round-trip for both Databricks and MongoDB connections, with secrets correctly redacted on read.

[carlosfunk]

I see @kw-datamasque has an open PR (#14) to change the release process so you might want to wait for that first and remove your changelog entry...

[kw-datamasque]

I see @kw-datamasque has an open PR (#14) to change the release process so you might want to wait for that first and remove your changelog entry...

This PR is still in draft and being tested so may be a short while until its merge in so free to edit the changelog here and I'll tidy it all once it's merged in 🙂